These cauliflower mashed potatoes are a tasty side dish for any meal! These taste just like classic mashed potatoes- no one will know they’re secretly healthy!

If you’ve ever searched for a healthy cauliflower recipe, you’ve probably heard about the “cauliflower mash” craze. Basically, you just puree cauliflower with some butter/spices/etc. and it’s a healthy swap for mashed potatoes. I’ve made it before and it’s pretty good… but I knew it wouldn’t pass the test for my potato loving midwestern husband. So I thought I’d trick him.


Ok, I didn’t really trick him. Mostly because he was in the kitchen when I was chopping the cauliflower. He was on to me. But that really just makes this recipe all the more impressive. He knew there was cauliflower in it and he still liked it!

A head of Cauliflower

The trick? A compromise. Half cauliflower, half potato. A little bit of the healthy stuff, a little bit of the real stuff. The result was delicious!

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Cauliflower Mashed Potatoes

  • Author: Liz Thomson
  • Prep Time: 10 mins
  • Cook Time: 15 mins
  • Total Time: 25 mins
  • Yield: 4 1x
  • Category: Side Dish
  • Method: Stovetop
  • Cuisine: Side Dish


These cauliflower mashed potatoes are a tasty side dish for any meal! These taste just like classic mashed potatoes- no one will know they’re secretly healthy!



  • 1 large russet potato (or 2 small potatoes)
  • 1/2 medium head of cauliflower
  • 4 cups water
  • 1/3 cup skim milk
  • 1 tablespoon butter
  • 1/2 teaspoon onion powder
  • 1 teaspoon salt


  1. Dice the potato into one inch chunks.
  2. Chop the cauliflower into large pieces.
  3. In a large pot, add the potatoes, cauliflower, and 4 cups of water (or enough to cover the veggies) and bring the water to a boil.
  4. Once it’s boiling, turn down the heat but continue to simmer.
  5. Cook for 8-10 minutes or until the potatoes and cauliflower have softened. You can test it out by poking a piece with a fork. It should be easy to pierce but not mushy.
  6. Drain the potatoes and cauliflower and transfer to a large bowl.
  7. Add in the butter, onion powder, and salt and mash with a potato masher or a large fork.
  8. Continue to mash until you reach your desired consistency.

Keywords: cauliflower mashed potatoes

If you want a smoother texture, you can blend the cauliflower in the food processor first, then add the potatoes and continue to mash by hand.

mashed potatoes (1)

Substitution Ideas

  • If you want to add a little tang, reduce the milk to 1/4 cup and add 2 tablespoons of sour cream.
  • To turn this into cheesy cauliflower mashed potatoes, add 2 ounces of finely shredded cheddar cheese, as you mash the potatoes. I recommend freshly shredded, which melts into a smoother consistency.
  • To make these vegan, use vegan butter (I like Earth Balance) and almond milk instead of skim milk.

mashed potatoes

I was actually impressed with how delicious these were. You can’t taste the cauliflower at all. This would be a perfect way to sneak in some extra veggies, even if you have a cauliflower hater in your life.

Need more ideas for cauliflower? Here are 10 ways to use cauliflower crumbles! Or if you’re in the mood for more traditional mashed potatoes, try these easy goat cheese mashed potatoes.

What’s your favorite way to use cauliflower?