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Horseradish Cauliflower Mash

This horseradish cauliflower mash side dish is a low carb alternative to mashed potatoes! Gluten free and keto recipe.

Horseradish Cauliflower Mash - a low carb and keto side dish recipe

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Cauliflower is a commonly used vegetable for low-carbers, especially to replace potato.  Horseradish is the perfect addition that really lifts this vegetable and makes a tasty side dish!

Horseradish Cauliflower Mash - a low carb and keto side dish recipe

Of course you can use a whole head of cauliflower to make this dish – but I usually use microwave steam-in-the-bag florets. I find that if I boil cauliflower the florets can end up too watery. For four servings, use two 10oz bags, and cook them until the cauliflower is super soft, around 7 minutes.

How to Make Horseradish Cauliflower Mash

Once the cauliflower is cooked, add cream cheese, prepared horseradish and seasoning, and mash everything together. I taste-test several times to get just the right amount of horseradish heat!

Horseradish Cauliflower Mash - a low carb and keto side dish recipe

Season with salt and pepper. I prefer to use a potato masher and mash by hand – but for a smoother result (but more washing up!), you could whizz it all up in a food processor.

Transfer the mash to a serving bowl and sprinkle some finely chopped herbs like parsley or chives over the top. Grind some extra black pepper over and finish with a couple of slices of butter.

Horseradish Cauliflower Mash - a low carb and keto side dish recipe


My non low-carbing husband actually prefers this dish to mashed potatoes as it is just as filling but doesn't leave him feeling too full. So this is a great side dish for mixed company! It makes a wonderful accompaniment to meat dishes like Baked Balsamic Chicken Thighs, Garlic Butter Pork Chops, or Herb Crusted Roast Beef.

Horseradish Cauliflower Mash - a low carb and keto side dish recipe

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You might also like my recipe for Cheesy Cauli Mash – made in the Instant Pot!

There are actually quite a lot of recipes you can make WITH cauli mash – check out this list of 14+  low carb ways to use cauliflower mash!

Low Carb Recipes with Cauliflower Mash

Horseradish Cauliflower Mash

Horseradish Cauliflower Mash

Yield: 4 Servings
Prep Time: 3 minutes
Cook Time: 7 minutes
Total Time: 10 minutes

Cauliflower mash is a great side dish for low carbers - and this one comes with a kick!


  • 20 oz cauliflower florets
  • 2 tbs cream cheese
  • 2-3 tbs prepared horseradish
  • salt and black pepper
  • 1 tbs chopped fresh herbs, eg chives
  • 2 tbs butter


  1. Steam or boil the cauliflower until soft, then drain.
  2. Place the cooked cauliflower into a bowl, add the cream cheese and horseradish, and mash together.
  3. Add salt and pepper as required; add more horseradish to taste.
  4. Spoon the cauliflower mash into a bowl and sprinkle with chopped herbs, more black pepper, and the butter.


3.5g net carbs per serving (quarter of whole recipe).

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Nutrition Information
Yield 4 Serving Size Quarter of the recipe
Amount Per Serving Calories 112Total Fat 9gSaturated Fat 5gTrans Fat 0gUnsaturated Fat 3gCholesterol 22mgSodium 265mgCarbohydrates 7.5gNet Carbohydrates 3.5gFiber 4gSugar 4gProtein 3g

Nutritional information for this recipe is provided as a courtesy and is my best approximation. I cannot guarantee completely accurate data due to variations in ingredients and cooking methods. Carbohydrates from sugar alcohols are not included in net carb counts as it has been shown that they do not impact blood sugar. Net carbs are the total carbs minus fiber.




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