Lá fhéile Pádraig sona dhuit — happy St. Patrick’s Day in advance! This low-carb Colcannon with kale is a lighter, keto-friendly take on the Irish classic. It uses just a handful of ingredients and is quick to prepare, so you don’t have to wait for March 17th to enjoy it.
Tips for making the Low-Carb Colcannon with Kale
Colcannon is traditionally a mashed-potato dish mixed with cabbage or kale. This version swaps starchy potatoes for mashed cauliflower, which gives a creamy texture without the high carbs. The keys to success are well-drained vegetables and gentle heating so the result is rich and velvety rather than watery.
Drain the cooked cauliflower thoroughly before mashing or pureeing. Excess liquid will make the dish thin and bland. Likewise, steam the kale just until wilted but still slightly firm — about 5–7 minutes works well — then squeeze or shake out excess water before adding it in.
For the smoothest texture, use an immersion blender to puree the cauliflower with the heavy cream and chives. A potato masher or standard blender will also work if you prefer a chunkier texture.
Start by combining the well-drained cooked cauliflower with heavy cream and chives, then mash or puree until smooth. Add the drained, chopped kale and stir until evenly distributed. Heat gently until piping hot — avoid boiling — and serve with a pat of softened butter on top.
My low-carb and keto colcannon experiments
One summer while staying at our remote summer house in Finland, I experimented with a low-carb version of colcannon. I wanted something flavorful and festive — green for St. Patrick’s Day — but also keto-friendly. Cauliflower felt like the natural stand-in for potatoes, and kale provided the color and nutrients I wanted.
My initial tests used onion powder for seasoning, but the flavor came out a bit dull. Swapping in fresh chives made a noticeable improvement, adding brightness and a mild onion flavor without overpowering the dish. I also found that a generous splash of heavy cream and a knob of butter at serving time keeps the colcannon satisfyingly rich — important when you’re following a low-carb or ketogenic approach.
After refining the amounts and technique, the version I kept returning to used well-drained cooked cauliflower pureed with heavy cream and chives, folded together with a modest amount of steamed, chopped kale. A final gentle heat-through and a spoonful of softened butter on each serving made it comforting and elegant at once.
Low-Carb Colcannon with Kale
Ingredients
- 2 cups (470 ml) packed cooked cauliflower, well-drained (about 1 lb / 450 g)
- 1/4 cup (60 ml) heavy cream
- 2 tablespoons chopped chives
- 1–2 cups (240–470 ml) steamed, chopped kale leaves, well-drained (about 1–2 oz / 30–60 g)
- Optional: unrefined sea salt or Himalayan salt, to taste
- 4 tablespoons softened grass-fed butter for serving
Instructions
- Combine the well-drained cauliflower with the heavy cream and chives. Mash or puree until smooth.
- Add the steamed, drained kale and stir until evenly combined.
- Heat gently over low heat until piping hot; do not boil. Season with salt if desired.
- Serve with softened butter, using about 1 tablespoon per serving.
| Nutrition Information | In Total | Per serving (if 4 servings) |
| Protein | 11.2 g | 2.8 g |
| Fat | 71.4 g | 17.8 g |
| Net carbs | 13.6 g | 3.4 g |
| Calories | 757 kcal | 189 kcal |
Tips for variation
If you prefer a completely smooth texture, puree the kale together with the cauliflower mixture. That makes the dish more uniform and often more appealing to kids. Swap kale for cabbage if you want a more traditional version — it will change the color but keep the spirit of colcannon.
For extra savory depth, stir in 1/4 cup (60 ml) grated Parmesan while the mixture is hot. A pinch of white pepper or a crushed garlic clove stirred in just before serving also works nicely for extra flavor.
If you have leftover cooked cauliflower, this recipe is a simple and satisfying way to transform it into a vibrant, low-carb side dish. Enjoy the creamy texture and bright green color of this modern colcannon — perfect for St. Patrick’s Day or any night of the week.
