Delicious & Healthy Keto Cauliflower Colcannon: A Low-Carb Irish Delight (Instant Pot & Stovetop Options!)
Transform your traditional Irish feast with our incredible Keto Cauliflower Colcannon recipe! This wholesome and flavorful twist on the classic mashed potato and greens dish is not only incredibly delicious but also perfectly suited for keto, paleo, Whole30, and vegan diets. Get ready to impress everyone at your table – even the most ardent potato lovers won’t realize the difference. They’ll just be asking for second and third helpings of this creamy, satisfying side!

Table of Contents
- What is Colcannon? A Traditional Irish Delight Reimagined
- The Ultimate Diet-Friendly Colcannon: Keto, Paleo, Whole30 & Vegan Approved!
- Why Choose Cauliflower for Your Colcannon? Health Benefits Galore!
- Instant Pot vs. Stovetop: Making Cauliflower Colcannon Your Way
- Instant Pot Cauliflower Colcannon Quick Guide
- Master Your Meal Prep: Can You Make Cauliflower Colcannon Ahead?
- Essential Ingredients for Your Perfect Cauliflower Colcannon
- Step-by-Step Guide: How to Make Creamy Cauliflower Colcannon
- Preparing Your Greens (Stovetop)
- Steaming the Cauliflower to Perfection (Stovetop)
- Combining Flavors for the Ultimate Mash
- Serving Suggestions for Your Delicious Cauliflower Colcannon
- Storing Leftovers & Creative Uses
- Frequently Asked Questions About Cauliflower Colcannon
- Printable Recipe Card: Keto & Paleo Cauliflower Colcannon
What is Colcannon? A Traditional Irish Delight Reimagined
Colcannon is a beloved traditional Irish dish, deeply rooted in centuries of culinary heritage. Typically served as a hearty side, especially around Halloween and St. Patrick’s Day, it’s a celebration of simple, wholesome ingredients transformed into something profoundly comforting. The classic recipe combines fluffy mashed potatoes, usually russet or Yukon gold, with cooked greens such as kale or cabbage, often enriched with generous amounts of butter and cream.
This wonderfully decadent and creamy side dish perfectly complements a variety of savory, meaty entrées. Imagine it alongside a rich Instant Pot Beef Stew, tender corned beef, or a classic Irish stew. The traditional version, with its high starch content from potatoes and dairy from butter and cream, is a true indulgence. However, for those managing blood sugar levels or dealing with dairy intolerance, it can be a challenging choice. That’s precisely why we set out to create a healthier, equally delicious alternative. Building on the success of our Garlic Cauliflower Mashed “Potatoes” recipe, we’ve ingeniously adapted it to craft a fantastic paleo and keto cauliflower colcannon that captures all the comforting essence without the drawbacks.
The Ultimate Diet-Friendly Colcannon: Keto, Paleo, Whole30 & Vegan Approved!
This cauliflower colcannon isn’t just a delicious side; it’s a culinary triumph designed to fit a wide range of dietary needs without sacrificing flavor or texture. Unlike the starchy potatoes found in traditional Irish colcannon, steamed cauliflower is naturally low in carbohydrates and non-starchy, making it an ideal base for a keto-friendly dish. When you purée it, it achieves a remarkably creamy texture that rivals its potato counterpart, often requiring no additional cream or liquid, keeping it naturally lighter.
For those following a paleo or Whole30 lifestyle, this recipe is a perfect fit. We use ghee, a clarified butter that is free from lactose and casein, providing a rich, buttery flavor while adhering to these dietary guidelines. If you require a completely dairy-free or vegan colcannon, simply substitute the ghee with high-quality extra virgin olive oil. The result is still incredibly flavorful and satisfying. This adaptability ensures that everyone, regardless of their dietary preferences, can enjoy a hearty and comforting serving of our healthy colcannon. It’s a true “Ta-da!” moment for eaters of all stripes!

Why Choose Cauliflower for Your Colcannon? Health Benefits Galore!
Beyond its incredible versatility for dietary restrictions, cauliflower brings a powerhouse of nutritional benefits to this updated colcannon recipe. As a cruciferous vegetable, cauliflower is exceptionally low in carbohydrates and calories, making it a stellar choice for anyone aiming to maintain a ketogenic or low-carb diet without feeling deprived. It allows you to enjoy the comforting texture and richness of mashed potatoes without the blood sugar spikes typically associated with starchy vegetables.
Cauliflower is also rich in essential vitamins and minerals. It’s an excellent source of Vitamin C, a powerful antioxidant that supports immune health, and Vitamin K, crucial for blood clotting and bone health. Furthermore, it provides a good amount of fiber, which aids in digestion, promotes satiety, and contributes to gut health. This high fiber content helps you feel fuller for longer, reducing the likelihood of overeating. By swapping potatoes for cauliflower, you’re not just making a dietary adjustment; you’re upgrading the nutritional profile of your meal, ensuring you get more vitamins, minerals, and fiber with every delicious bite. It’s a satisfying substitute that genuinely nourishes your body while delighting your taste buds.
Instant Pot vs. Stovetop: Making Cauliflower Colcannon Your Way
Whether you’re a fan of traditional cooking methods or love the convenience of modern kitchen gadgets, this cauliflower colcannon recipe offers flexibility. While the stovetop method is straightforward and easily accessible, if you own an Instant Pot, you can significantly cut down on cooking time, making this dish even quicker to prepare. The Instant Pot excels at steaming vegetables rapidly and efficiently, ensuring your kale and cauliflower are perfectly tender in a fraction of the time.
Both methods yield a wonderfully creamy and flavorful colcannon, so choose the one that best suits your kitchen setup and time constraints. For those busy weeknights or when you need a quick side dish, the Instant Pot is a game-changer. For a more relaxed cooking experience, or if you don’t have a pressure cooker, the stovetop method is just as reliable and simple to follow. We provide clear instructions for both, so you can confidently prepare this delightful dish no matter how you prefer to cook.

Instant Pot Cauliflower Colcannon Quick Guide:
- Pour 1 cup of water into the metal insert of your Instant Pot and place a steamer basket or trivet on top. Place the kale, stemmed and roughly torn, into the steamer insert. Sprinkle liberally with salt.
- Secure the lid, set the valve to sealing, and cook on high pressure for 1 minute. Once cooking is complete, perform a manual pressure release by carefully turning the valve to venting. When the pin drops, open the lid and remove the cooked kale.
- Add the cauliflower florets to the same steamer insert. Season the cauliflower liberally with salt.
- Lock the lid again, set the valve to sealing, and cook under high pressure for 3 minutes. After cooking, perform another manual pressure release.
- Now, proceed with the remaining steps of the recipe as described below, starting with transferring the cooked cauliflower to a food processor to purée.
Master Your Meal Prep: Can You Make Cauliflower Colcannon Ahead?
Absolutely! This cauliflower colcannon recipe is a fantastic choice for meal prepping. You can prepare it entirely in advance, making it an ideal dish for busy weeknights or entertaining guests without last-minute stress. Once cooked and cooled, simply transfer the colcannon to a sealed, airtight container and store it in the refrigerator for up to 4 days. This allows the flavors to meld even further, sometimes making it taste even better the next day!
When you’re ready to enjoy it, reheating is simple. You can gently warm it in the microwave until heated through, stirring occasionally to ensure even temperature. Alternatively, for a stovetop reheat, place the colcannon in a covered pot over low heat, stirring occasionally, until it reaches your desired warmth. If it seems a little dry, you can add a splash of vegetable broth or a bit more ghee/olive oil to restore its creamy texture. This make-ahead convenience ensures you always have a healthy, comforting side dish ready to go.
Essential Ingredients for Your Perfect Cauliflower Colcannon
Crafting the perfect cauliflower colcannon requires a few simple yet high-quality ingredients. Each component plays a crucial role in achieving the desired flavor and texture that makes this dish so irresistible:
- Large Cauliflower, cut into florets: The star of our show! Choose a firm, white head of cauliflower. Cutting it into uniform florets ensures even cooking, which is key for a smooth, lump-free purée.
- Kale: Fresh, vibrant kale adds both nutritional value and a slightly peppery, earthy flavor that beautifully balances the creamy cauliflower. Both curly green kale and lacinato kale (also known as dinosaur kale) work wonderfully in this recipe. Lacinato kale tends to be a bit more tender once cooked. If you’re not a fan of kale or prefer a milder taste, savoy cabbage is an excellent traditional alternative that provides a similar texture and classic colcannon flavor.
- Green Onions (Scallions): These provide a mild, fresh oniony flavor and a touch of vibrant green color. They are essential for that classic colcannon appeal and a hint of sharpness against the creamy base.
- Ghee (Clarified Butter): Ghee is our preferred fat for this recipe, offering a rich, nutty, buttery flavor without the lactose and casein found in regular butter, making it suitable for paleo and Whole30 diets. If you tolerate dairy, feel free to use regular unsalted butter for a classic taste. For a completely dairy-free and vegan colcannon, extra virgin olive oil is a fantastic substitute that lends a lovely fruity note.
- Diamond Crystal Kosher Salt: This type of salt is favored by many chefs for its coarser grain and consistent seasoning. It allows for better control when salting, ensuring your colcannon is perfectly seasoned to enhance all its natural flavors.
- Freshly Ground Black Pepper: A crucial finishing touch, freshly ground black pepper adds a subtle warmth and aromatic kick that elevates the overall taste of the dish. Adjust to your personal preference for a mild or more pronounced pepper flavor.
With these fresh ingredients and a few simple steps, you’ll be on your way to a truly exceptional cauliflower colcannon.
Step-by-Step Guide: How to Make Creamy Cauliflower Colcannon
Creating this healthy cauliflower colcannon is a straightforward process, whether you opt for the stovetop or Instant Pot. Follow these detailed steps to achieve a perfectly creamy, flavorful, and satisfying dish that will become a staple in your kitchen.
Preparing Your Greens (Stovetop)
If you’re cooking this dish on the stovetop, begin by filling a large stock pot with water. Place the lid on the pot and bring the water to a rapid rolling boil over high heat.

Once the water is at a vigorous rolling boil, add a generous pinch of Diamond Crystal kosher salt. This seasons the water, which in turn seasons your kale from the inside out, enhancing its flavor.

Carefully place the stemmed and roughly torn kale leaves into the boiling, salted water. Cook them for approximately 2 to 4 minutes, or until the kale is tender and vibrant green but still retains a slight bite. Avoid overcooking, as this can make it mushy.

Once the kale is tender, carefully drain it in a colander, allowing all the excess water to drip away. Set aside to cool slightly.

Steaming the Cauliflower to Perfection (Stovetop)
After draining the kale, clean out the stock pot. Fill it with about 2 inches of fresh water. Place a steamer insert inside the pot, ensuring the water level is below the bottom of the steamer. Cover the pot and bring the water to a boil over high heat. Once the water is boiling and steaming, add the cauliflower florets to the steamer insert and season them liberally with salt.

Replace the lid on the pot and allow the cauliflower to steam until the florets are completely fork-tender. This typically takes about 10 to 15 minutes, depending on the size of your florets. You should be able to easily pierce them with a paring knife without resistance.

Combining Flavors for the Ultimate Mash
While the cauliflower is steaming, return your attention to the cooked kale. It’s important to remove as much excess liquid as possible to prevent a watery colcannon. Place the cooled kale in a clean kitchen towel or cheesecloth and firmly wring out all the moisture. This step is crucial for achieving the perfect texture.

Once the kale is squeezed dry, finely chop it. Similarly, finely chop your green onions (scallions). Transfer both the chopped kale and scallions to a large mixing bowl.

Once the cauliflower is done cooking and tender, carefully transfer the florets into a food processor. Be sure to drain any residual water from the cauliflower before adding it to the processor.

Add 3 tablespoons of ghee (or extra virgin olive oil for a vegan colcannon) to the food processor with the cooked cauliflower. This fat is key to achieving a rich, smooth, and creamy texture.

Process the cauliflower and ghee/oil until the mixture is completely smooth and creamy, resembling a perfect mashed potato texture. Scrape down the sides of the processor as needed to ensure everything is thoroughly combined.

Now, add the smooth cauliflower purée to the large bowl containing the chopped kale and scallions. Gently fold the ingredients together until they are well combined and the greens are evenly distributed throughout the creamy cauliflower mash.

Taste the colcannon and adjust the seasoning with additional salt and freshly ground black pepper as needed. Remember, proper seasoning is key to bringing out all the wonderful flavors.

Transfer the finished cauliflower colcannon to a serving bowl. For an extra touch of richness and flavor, add the remaining tablespoon of ghee (or olive oil) on top. It will beautifully melt into the warm colcannon, creating a luscious finish. Serve immediately and enjoy!

Pair this versatile side dish with your favorite meaty entrée, and dinner is served! It’s hearty, comforting, and incredibly satisfying.

Serving Suggestions for Your Delicious Cauliflower Colcannon
This Keto Cauliflower Colcannon is incredibly versatile and makes a fantastic accompaniment to a wide variety of main courses. Its creamy texture and savory flavor profile beautifully complement robust, hearty dishes. Traditionally, colcannon is served with Irish staples like corned beef and cabbage, Irish stew, or bangers and mash, and our cauliflower version is no exception.
Beyond traditional pairings, consider serving this healthy colcannon alongside other protein-rich entrées. It’s wonderful with a perfectly roasted chicken or turkey, pan-seared pork chops, or grilled steak. For a comforting family meal, it pairs excellently with meatloaf or a slow-cooked pot roast. If you’re looking for vegetarian options, try it with savory mushroom steaks or alongside a hearty lentil loaf. A dollop of extra ghee or a drizzle of olive oil just before serving adds an extra layer of richness that melts beautifully into the warm mash. Don’t forget a sprinkle of fresh chopped chives or parsley for a pop of color and freshness!
Storing Leftovers & Creative Uses
One of the best things about this cauliflower colcannon is how well it keeps. You can store any leftovers in a sealed, airtight container in the refrigerator for up to 4 days. This makes it perfect for meal prepping throughout the week. To reheat, simply use a microwave until warm, stirring halfway through, or gently warm it in a covered pot over low heat on the stovetop, adding a splash of broth if it appears too thick.
Don’t let any leftover colcannon go to waste! It’s incredibly versatile for repurposing. A popular way to use it is as a delicious, low-carb topping for shepherd’s pie. Simply spread it over a meaty base and bake until golden and bubbly. You can also form it into small patties, pan-fry them until crispy, and serve them as a unique breakfast side or snack. For a quick and easy breakfast, combine leftover colcannon with some scrambled eggs and a sprinkle of cheese for a satisfying and nutritious start to your day.
Looking for more healthy and delicious recipe ideas? Head on over to my Recipe Index for a treasure trove of culinary inspiration. You’ll also find exclusive recipes and cooking tips in my acclaimed cookbooks: Nom Nom Paleo: Food for Humans (Andrews McMeel Publishing 2013), Ready or Not! (Andrews McMeel Publishing 2017), and Nom Nom Paleo: Let’s Go! (Andrews McMeel Publishing 2022).
Frequently Asked Questions About Cauliflower Colcannon
Here are answers to some common questions you might have about making and enjoying cauliflower colcannon:
- Can I use frozen cauliflower? Yes, you absolutely can! Frozen cauliflower florets work well for this recipe. You can steam them directly from frozen. Just be sure to squeeze out any excess moisture after cooking to avoid a watery mash.
- Can I use other types of greens? While kale and cabbage are traditional, you can experiment with other leafy greens. Spinach, collard greens, or Swiss chard could also work, though they might alter the classic colcannon flavor profile slightly. Always cook them until tender and squeeze out excess liquid.
- Is it really as good as traditional potato colcannon? Many people find cauliflower colcannon to be just as satisfying, if not more so, than the traditional potato version. The key is to achieve a very smooth, creamy purée for the cauliflower and season it well. The added greens and rich fat (ghee or olive oil) contribute significantly to its comforting appeal. Give it a try – you might be pleasantly surprised!
- How can I make it spicier? If you enjoy a bit of heat, you can add a pinch of red pepper flakes to the kale as it cooks, or stir in a dash of cayenne pepper when combining the mash. A few drops of hot sauce can also be added when serving.
- What if I don’t have a food processor? If you don’t have a food processor, you can use an immersion blender or a potato masher to mash the cooked cauliflower. For the smoothest consistency, an immersion blender is preferable. Just ensure the cauliflower is very tender before mashing.
PRINTER-FRIENDLY RECIPE CARD
Cauliflower Colcannon
10 mins
35 mins
45 mins
6
Michelle Tam
Ingredients
- Diamond Crystal kosher salt
- 1 bunch kale stemmed and roughly torn
- 1 large cauliflower cut into florets
- 4 scallions
- 4 tablespoons ghee or extra virgin olive oil, divided
- freshly ground black pepper to taste
Instructions
Stovetop Cauliflower Colcannon
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Fill a large stock pot with water. Cover and bring to a boil over high heat. When the water is at a rolling boil, add a large pinch of salt.
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Place the kale leaves in the boiling water and cook for 2 to 4 minutes or until tender.
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Drain the cooked kale in a colander.
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Fill the now-empty stock pot with 2 inches of water. Place a steamer insert inside, cover the pot, and bring to a boil on high heat. Once the water is boiling, add the florets and salt liberally.
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Replace the lid, and steam the cauliflower until the florets are easily pierced with a paring knife, about 10 to 15 minutes.
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While the cauliflower is cooking, squeeze out the excess liquid in the cooked kale in a clean kitchen towel or cheesecloth.
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Finely chop the cooked kale and scallions and transfer them to a large bowl.
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When the cauliflower is done cooking, transfer the florets into a food processor. Plop in 3 tablespoons of ghee (or extra virgin olive oil if you’re making a vegan colcannon) and process until smooth.
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Add the cauliflower purée to the bowl with the greens and fold to combine. Taste and adjust the seasoning with salt and pepper.
Instant Pot Cauliflower Colcannon
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Pour 1 cup of water into the metal insert and place a steamer on top. Place the kale in the steamer insert, sprinkle on some salt, and cook on high pressure for 1 minute. Release the pressure manually and take out the cooked kale.
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Toss in the cauliflower florets into the steamer insert and salt everything liberally. Lock the lid and cook under high pressure for 3 minutes. Release the pressure manually.
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Follow steps 6 through 9 from the stovetop instructions above to complete the dish.
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
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