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close up shot of mashed cauliflower in brown bowl with parsley
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4.53 from 19 votes

Creamy Parmesan Instant Pot Mashed Cauliflower

Creamy Instant Pot mashed cauliflower is a healthier, low carb alternative to mashed potatoes. Prep it in the Instant Pot for an easy holiday side dish!
Prep Time10 mins
Cook Time25 mins
Total Time35 mins
Course: Side Dish
Cuisine: American
Servings: 4
Calories: 109kcal


  • 1 head cauliflower leaves removed
  • 1 cup stock
  • 4 cloves garlic
  • 6 sprigs fresh thyme

Mash with

  • 1/2 cup parmesan cheese freshly grated
  • 1/2 cup greek yogurt plain
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper


  • Place the stock, garlic cloves and sprigs of thyme in the bottom of a 6 quart Instant Pot. Place the trivet on top and the cauliflower on the trivet.
  • Cook for 15 minutes on the steam setting. Do a quick pressure release (release the pressure immediately when the IP beeps). Allow the cauliflower to rest with the lid open for 10 or so minutes, until it cools slightly and it safer to handle (and allows extra moisture to drip off).
  • Carefully transfer the cauliflower to a new pot with as little liquid as possible from the Instant Pot. 
  • Mash with the yogurt, cheese, salt and pepper. 
  • This recipe is easy to re-heat in a pot or the microwave, and keeps in the fridge for 3-4 days.


Since cauliflower sizes vary, you may need to adjust the seasoning to taste.
For a larger batch, you may wish to use the slow cooker version of this recipe, or work in two batches to cook the cauliflower.


Serving: 1/4 batch | Calories: 109kcal | Carbohydrates: 10g | Protein: 10g | Fat: 3g | Saturated Fat: 2g | Cholesterol: 9mg | Sodium: 778mg | Potassium: 497mg | Fiber: 3g | Sugar: 4g | Vitamin A: 295IU | Vitamin C: 72.6mg | Calcium: 219mg | Iron: 1mg