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    Hummusapien » Recipes » Diet » Vegetarian » Healthy Instant Pot Mashed Potatoes and Cauliflower
    ★★★★★ from 6 reviews

    Healthy Instant Pot Mashed Potatoes and Cauliflower

    Published Nov 9, 2020 · Modified Jul 19, 2023 · by Alexis Joseph · 13 Comments

    Jump to Recipe

    Creamy and comforting Instant Pot Mashed Potatoes and Cauliflower! An easy, healthy side packed with veggies that the whole family will love. Stovetop option included!

    bowl of mashed potatoes

    Is there anything more comforting than a steamy bowl of mashed spuds?!

    Now I must say...mashed cauliflower on its own doesn't do it for me. Sure, it tastes fine and dandy, but it doesn't taste like mashed potatoes. It's not a potato, after all!

    That said, what I've discovered in my quest of a delish veggie-packed potato dish is that a 2:1 ratio of potatoes to cauliflower is simply divine. You really don't taste the cauliflower at all; rather it simply amplifies the fluff factor of the potatoes.

    For more potato goodness, don't miss my Creamy Potato Soup! And for a decadent version of this recipe, you'll go wild over Instant Pot Mashed Potatoes with Garlic and Cream Cheese.

    pot of sliced potatoes and cauliflower

    Why make mashed potatoes in the Instant Pot

    It isn't necessarily faster, but it is totally hands off. You don't have to mess with the settings when it comes to boiling and simmering. Since you just set it and forget it, you can do other things while the potatoes and cauliflower steam.

    Plus, pressure cooking locks in all those lovely nutrients!

    Stovetop variation

    You can totally make this recipe in a pot over the stove if you don't have an Instant Pot. Simply boil the veggies like you normally would, drain, and proceed with the recipe. Easy peasy!

    Is peeling necessary?

    This is totally a personal preference. If you don't mind the added textural intrigue of having a bit of peel throughout, leave it on!

    up close bowl of mashed potatoes with butter

    How to make extra creamy mashed potatoes

    1. Use a stand or hand mixer to whip the potatoes rather than mashing. This will add extra air and fluff factor, making them as creamy as can be!
    2. Opt for high fat milk. The more fat, the creamier your potatoes will be. Half and half (cream), whole milk, and non-dairy milk all work, but you'll definitely get the most velvety mouth feel with a higher fat milk. I would not recommend a strong tasting milk like coconut, as you want the flavor of the potatoes to really shine.
    3. Don't over-mash. If you've ever had gluey potatoes, that's from over-mashing. You want them creamy but not worked to death.
    4. Add yogurt or cheese. I love a spoonful of full fat Greek yogurt (or sour cream) for extra tang. Freshly grated parmesan is also a delish touch!
    5. Use a mix of potatoes. Half russet and half Yukon gold makes for a great texture, I've found!

    Storage tips

    This recipe makes a nice amount of mashed potatoes---about eight cups, which will serve six to eight hungry faces.

    • Storing: Store any leftovers in an air-tight container in the refrigerator for three to four days.
    • Freezing: Yes, you can freeze mashed potatoes! Place leftovers in a freezer-safe baggie. Freeze flat for up to 2 months. You can also freeze 1-cup portions in small baggies. Defrost in the refrigerator overnight or reheat in the microwave.
    white bowl of gravy with silver spoon

    Now go make your mashed potato dreams come true!

    Let me know if you love these by leaving a star rating and comment. I appreciate you!

    Print
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    Healthy Instant Pot Mashed Potatoes and Cauliflower

    ★★★★★ 5 from 6 reviews
    • Author: Alexis Joseph
    • Prep Time: 10 minutes
    • Cook Time: 10 minutes
    • Total Time: 20 minutes
    • Yield: 8 cups (serves 6-8) 1x
    • Category: Side Dishes
    • Method: Instant Pot
    • Cuisine: American
    • Diet: Vegan
    Print Recipe
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    Description

    Creamy and comforting Instant Pot Mashed Potatoes and Cauliflower that taste just like traditional mashed potatoes! An easy, healthy side packed with veggies that the whole family will love. See Notes section for stovetop instructions. Serve with the cozy vegan gravy.


    Ingredients

    Units Scale
    • 4 medium potatoes, peeled and sliced into rounds (3 pounds, I like half Yukon and half russet)
    • 1 medium-large head cauliflower, cored and roughly chopped (1 ½ pounds florets)
    • 3 cups water
    • 2 tsp kosher salt, divided (more to taste)
    • ½ cup milk of choice* (I used unsweetened almond)
    • ¼ cup butter (or vegan butter)
    • 1 tsp garlic powder
    • Freshly ground black pepper

     


    Instructions

    1. Place potatoes and cauliflower in the Instant Pot. Add 3 cups water and sprinkle with 1 tsp kosher salt.
    2. Seal lid and cook on Manual, High Pressure for 10 minutes. (Note that it will take ~10 minutes to come to pressure before it starts counting down.) Quick release remaining pressure. Drain vegetables and return to Instant Pot.
    3. Add milk, butter, garlic powder, and salt and pepper to taste. You can also add a couple spoonful of yogurt for extra tang or a handful of grated Parmesan cheese. Use a potato masher to mash until you reach your desired consistency, or for extra creamy potatoes, whip them in a stand mixer or in a bowl using electric beaters. Taste and add salt if needed (I added another ½ tsp since some of the salt gets drained). Garnish with fresh thyme, parsley, or chives. Leftovers will keep in the refrigerator for three-four days.

    Notes

    STOVETOP: Add potatoes and cauliflower to a large pot. Add enough water or broth to fully cover the vegetables and 1 tsp salt. Bring to a boil over high heat, cover and simmer on low for 20 minutes, or until the vegetables are tender. Drain vegetables and return to pot. Continue with step 4 in the above recipe.

    *MILK: Whole milk, 2%, half and half, or a neutral, unsweetened and unflavored non-dairy milk all work (almond, rice, oat, soy, etc). I would not recommend coconut milk due to the strong flavor. The higher fat milk you use, the creamier they'll be.

    TO MAKE VEGAN: Use vegan butter like Earth Balance and non-dairy milk.

    For a more decadent version, try my Instant Pot Mashed Potatoes with Cream Cream Cheese and Garlic.

    You can cook the potatoes in broth instead of water for even more flavor!

    Did you make this recipe?

    Tag @hummusapien on Instagram. I love sharing what you make!

    About Alexis Joseph


    Oh HEY there! I'm Alexis Joseph, food writer, blogger, Registered Dietitian Nutritionist (RDN), new mama, and co-founder of local restaurant group, Alchemy. I use my passion for cooking and wellness as fuel to help others ignite a more freeing and happy relationship with food. Learn more about Alexis!

    Reader Interactions

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    1. Dolores says

      July 08, 2023 at 5:14 pm

      Can you really freeze the left overs?

      Reply
      • Alexis Joseph says

        July 19, 2023 at 3:42 pm

        Yes, they freeze very well!

        Reply
    2. Marieke says

      April 02, 2023 at 5:57 pm

      Delicious, everyone said that it was they favorite puree from now on !

      ★★★★★

      Reply
      • Alexis Joseph says

        April 02, 2023 at 9:45 pm

        I’m so glad!!

        Reply
    3. Ashley says

      January 08, 2023 at 1:06 pm

      This recipe was a hit for my toddler who is entering a more selective food stage! I reduced the salt to 1 teaspoon, but followed the recipe exactly otherwise.

      ★★★★★

      Reply
    4. Annie says

      December 08, 2020 at 9:45 pm

      Finally, a way to get my husband to eat cauliflower! I prefer my mashed potatoes slightly chunky so used a hand masher and added a little sharp cheddar cheese. This cauli-potato mash will be in our side rotation!

      ★★★★★

      Reply
      • Alexis Joseph says

        December 09, 2020 at 12:24 pm

        Mmmm that sounds sooo good with the cheddar. Thrilled hubby approved!

        Reply
    5. Mary says

      November 19, 2020 at 5:39 pm

      These are the best potatoes I’ve ever eaten!!! And they are full of cauliflower!! Whoa! Make these for your 2020 Thanksgiving gathering of only you and your spouse!!

      ★★★★★

      Reply
      • Alexis Joseph says

        November 19, 2020 at 11:32 pm

        Yayyy!!

        Reply
    6. Janelle says

      November 12, 2020 at 2:59 pm

      Made these and they tasted just like classic mashed potatoes. YUM!!

      ★★★★★

      Reply
      • Alexis Joseph says

        November 16, 2020 at 2:06 pm

        Super!

        Reply
    7. Dylan says

      November 09, 2020 at 1:30 pm

      So comforting! Love the addition of cauliflower 🙂

      ★★★★★

      Reply
      • Alexis Joseph says

        November 09, 2020 at 2:23 pm

        Eeee thanks, Dylan!!!

        Reply

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