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Instant Pot Garlic Parmesan Whole Roasted Cauliflower

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Whip up this Instant Pot garlic parmesan whole roasted cauliflower in a hurry. It is great for vegetarians as a hearty main dish or slice up and serve it as a side dish next to your main dish. Zesty lemon, savory garlic, and butter come together for one of the most flavorful ways to serve up your cauliflower. 

This Instant Pot Garlic Parmesan Whole Roasted Cauliflower is so darn delicious I can’t decide if I want to eat it as a meal or as a side dish. I do know, I can not stop eating it.  This makes for a delicious Keto meal or side dish.  I love the ease of making this in my instant pot.  It is cooked to perfection and the garlic parmesan really pushes this over the flavor edge and packs a great punch of flavor.

Lazy Night Garlic Parmesan Whole Roasted Cauliflower 

The other night I was tired, it had been a long day and I needed something quick. Have you ever had nights like that? I went into the fridge and pantry and whipped up this garlic Parmesan whole roasted cauliflower. It is such a simple side for my family, and it is truly bursting with fresh and zesty flavors. 

instant pot Garlic Parmesan Whole Roasted Cauliflower

How Easy Is Garlic Parmesan Whole Roasted Cauliflower

I used my Instant Pot to whip up my cauliflower. It has become an essential kitchen tool that is allowing me to cook incredible dishes and even desserts for my family and loved ones. 

This roasted cauliflower takes minutes to prep. I just put it on a baking sheet and popped it in the oven under broil. This helps give you that slight golden crunch on the outside with a tender and soft cauliflower on the inside. Within five minutes I was ready to serve up this outstanding and light side.

instant pot Garlic Parmesan Whole Roasted Cauliflower

How Much Is A Head of Cauliflower

 You will see that most heads of cauliflower will be around 2 pounds, which equals around 3-4 cups of cauliflower florets. This is a good gauge to know how many heads you need to serve your family. 

Is Cauliflower Good For Weight Loss 

Many people reach for cauliflower because it is low in calories and full of fiber, which leaves you feeling full. This is a keto-friendly recipe, and such a treat to make. 

instant pot Garlic Parmesan Whole Roasted Cauliflower

Tips For Making Your Instant Pot Garlic-Parmesan Cauliflower 

  • Remove Leaves | Make sure to remove any leaves or extra stem off your cauliflower. I also always give it a good rinse before I prep my cauliflower head. 
  • Brush | I find using a brush is the best way to apply the butter mixture with all the seasonings onto the cauliflower. It helps give a nice even coat and allows the mixture to somewhat seep into the little crevices. 
  • Seasonings | If you feel that the seasonings don’t look like there is enough, sprinkle on a little extra. The main flavor will be on the exterior, so as you slice in the center will be more plain cauliflower in flavor so it is nice to pair each bite with the outer portion. 

instant pot Garlic Parmesan Whole Roasted Cauliflower

You seriously can’t go wrong with this Instant Pot side recipe. If you want to try something a bit different, give it a go, and be prepared to be amazed. 

Instant Pot Garlic Parmesan Whole Roasted Cauliflower

Instant Pot Garlic Parmesan Whole Roasted Cauliflower

Prep Time: 2 minutes
Cook Time: 1 minute
Total Time: 3 minutes

This Instant Pot Parmesan Whole Roasted Cauliflower is so delicious.  Either as a meal or as a side dish.  Keto friendly and delicious!


  • 1 head of cauliflower
  • 1/4 cup butter melted
  • 1 clove garlic minced
  • 1 teaspoon grated lemon zest
  • 2 tablespoons parsley chopped
  • 1/4 teaspoon salt
  • 1/4 teaspoon ground black pepper
  • 2 tablespoons parmesan cheese


  1. Trim leaves from cauliflower head and wash. Place on trivet in your pot with 1/2 - 1 cup of water.
  2. Combine butter, garlic, lemon zest, parsley, salt and pepper. Brush mixture on top of cauliflower. Slather it up good.
  3. Close the lid, make sure it’s in the sealing position and turn toggle to seal.
  4. Press Pressure (it should automatically set to HIGH pressure). Set time to *1 minutes. Hit START. When finished do a quick release.

For an extra crispy finish

  1. Carefully remove your cauliflower head & place on a baking sheet.
  2. Sprinkle 2 TBSP of Parmesan cheese over the top and sides.
  3. Place in the oven on broil until your cheese is starting to brown.


* your cauliflower will still be a bit crisp and cut well with a knife. If you prefer a softer cauliflower you may want to PC for 2-3 min.

Adapted from Spend with Pennies Garlic Parmesan Whole Roasted Cauliflower.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 148Total Fat: 13gSaturated Fat: 8gTrans Fat: 0gUnsaturated Fat: 4gCholesterol: 33mgSodium: 296mgCarbohydrates: 7gFiber: 3gSugar: 3gProtein: 4g

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    1. I corrected it. I did originally write this recipe with some Ninja Foodi directions included as well and missed that. 🙂

  1. Yum! Have you ever tried making this with cauliflower florets? I’m wondering if it might be extra delicious if florets were tossed in the seasoning mix before cooking, giving each bite LOTS of seasoned yumminess.

    1. Yes 1 min is all you need to still have a bit of crispness. If you would like a softer end result you can increase the cook time by 1 or 2 minutes.

      1. I suppose it also changes with the size of the head… Gave mine 2 Min tonight and it’s just better than raw :-). Will do 4 next time.
        By the way 3 Min at 400 with the crisper lid on the instapot duo crisp worked perfectly for the cheese crust.

  2. I made this tonight and it was really good (and I don’t consider myself a cauliflower fan). But I think next time I’ll break it into florets to get more of the seasoning/Parmesan on the cauliflower.

  3. I cooked it in my IP for 1 minute as instructed and did a quick release and it was super hard. We had to put it in the microwave for 10 mins to get it edible. Is 1 minute the correct time to cook in the IP?

    1. Hi Amber, Yes 1 minute is the correct time for a still crisp cauliflower. Some folks prefer 0 minutes. Try doing yours for 4 min next time. I would be nervous with much longer. See if 4 minutes hits the spot you like.

      1. Just FYI, 4 minutes was mush. We redid for 2 minutes and it was a little too soft so i think the 1 minute we did previously maybe my IP was not sealed correctly. Will try 1 minute next time with quick release.

  4. perfect 1st recipe to try with my new Instant pot! added it to a bed of rice and mushroom “gravy/rue” and it was a fantastic meal. My husband even had seconds! I too was skeptical about the 1 minute, but I think the time it took to come to pressure added to the cooking time.

    Thank you for making me not so scared of my new toy!

  5. What type of parmesan did everyone use? I’m making mine now; it’s still cooking and I used fresh grated parmesan. Did everyone else use fresh or did you use the dry stuff? If so, how did it turn out? Also, when mine is done I’ll post again and let you know how mine turns out. I’m cooking it for 2 minutes since we like it a little softer.

    1. Yes you can bake in the oven at 400 degrees in a dutch oven, Cover the dutch oven with a lid and bake for 35-45 minutes, until the cauliflower is tender and pierces easily with a skewer, knife or fork.

      Save 2 tablespoons of grated Parmesan cheese to finish it off under the broiler. Place the cauliflower under the broiler and broil for about 5 minutes, until the cheese is browned.

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