Ninja cauliflower cheese in a bowl with a fork alongside
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Cauliflower Cheese [in Ninja Air Fryer or Multi Cooker]

Need a quick side dish or low carb main meal that bakes up in under 30 minutes? Make this cauliflower cheese in Ninja air fryers or your favorite multi cooker. This three cheese keto cauliflower casserole is filling, delicious, and oh so cheesy!

What you’ll love about this recipe:


  • FAST – This Ninja Foodi cauliflower cheese is done in about 25 minutes, with very little hands-on time!
  • KETO – With under ten grams of carbs per serving, this air fryer cauliflower cheese is keto-friendly.
  • VERSATILE & SCALABLE – This recipe makes four delicious side dish servings or two decadent main dish servings. Need more? You can easily double it!
Text reads "Cauliflower Mac and cheese Ninja Foodi recipe" above a bowl of three cheese keto cauliflower casserole

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Tools Needed to Make Cauliflower Cheese in Ninja Air Fryers

You need just a few kitchen tools to make this recipe, since all the cooking is done in the Ninja Foodi. Here’s what I used:

  • Ninja Foodi
  • Measuring cups & spoons
  • Silicone spatula
  • Small mixing bowl

Ingredients for Cauliflower Cheese in Ninja Air Fryer

The great thing about this Ninja Foodi cauliflower mac and cheese is that, if you have a well-stocked pantry, you may already have all the ingredients. If not, check the options below to sub out for things you have.

Ingredients for keto cauliflower and cheese casserole including cauliflower, Parmesan, cheddar, cream cheese, chicken broth, butter and seasonings

Ingredients List

  • Cauliflower florets
  • Avocado oil
  • Chicken broth
  • Sharp cheddar cheese
  • Parmesan cheese
  • Cream cheese
  • Dijon mustard
  • Black pepper
  • Garlic powder
  • Onion powder

Substitutions

Cauliflower I used pre-cut and washed cauliflower florets from the produce department to save some time. But you could also use frozen, or cut a head of cauliflower into 1 inch pieces.

Oil The recipe calls for avocado oil, but you could use olive oil or even butter or ghee.

Broth I like the taste of chicken broth in this recipe, but you could substitute vegetable broth for it. You could also use milk or half-n-half if you want even more creaminess.

Cheeses The options are limitless here! I used parmesan, cheddar, and cream cheese, but you could sub in so many other cheeses. Play around with different combos.

Dijon mustard I’m not a fan of mustard in general, but I love Dijon. I think it complements the cheeses in this recipe perfectly, but you could use another mustard or even mustard powder.

Ninja cauliflower cheese in a bowl with a fork alongside

How to Make Cauliflower Cheese in Ninja Air Fryer Multi Cooker

I have a Ninja Foodi multi cooker with an air fryer function, so the directions are specific to that. But the recipe could be adapted to other multi cookers, too.

cauliflower florets in the cooking pot for keto cauliflower casserole with cream cheese

Step 1 Add the cauliflower pieces to the cooking pot of the Ninja Foodi and drizzle with oil. Stir to make sure the oil coats all the pieces. Bake at 375° for 15 minutes.

Cheddar, Parmesan, cream cheese and seasonings in a bowl for three cheese keto cauliflower casserole recipe

Step 2 While the cauliflower is cooking, add the remaining ingredients to a bowl and mix until the cream cheese is evenly distributed.

Cheese sauce for cauliflower cream cheese casserole poured on top of roasted cauliflower florets

Step 3 When the air fryer shuts off, pour the sauce over the cauliflower. Stir to coat all the pieces and allow the cheese to almost completely melt. Close the lid and bake another 5-10 minutes on 300°.

Ninja cauliflower cheese in cooking pot of an air fryer

Step 4 After the cauliflower cheese is browned to your preference, serve as a side or main dish with your favorite toppings (see suggestions below).

Topping Ideas for this Ninja Cauliflower Cheese

This recipe is delicious and filling on its own, but it gets even better with a few toppings. Here are some low carb suggestions to keep it keto-friendly:

  • Bacon crumbles
  • Green onion slices
  • Crushed pork rinds
  • More cheese
  • Chopped nuts

Recipe Card for Cauliflower Cheese in Ninja Air Fryer

Ninja cauliflower cheese in a bowl with a fork alongside

Cauliflower Cheese in Ninja Air Fryers

Yield: 4
Prep Time: 5 minutes
Cook Time: 20 minutes
Total Time: 25 minutes

Need a quick side dish or low carb main meal that bakes up in under 30 minutes? Make this cauliflower cheese in Ninja air fryers or your favorite multi cooker. This three cheese keto cauliflower casserole is filling, delicious, and oh so cheesy!

Ingredients

  • 2 lbs cauliflower florets
  • 1 Tbsp avocado oil
  • 1/2 cup chicken broth
  • 1 cup cheddar cheese
  • 1/2 cup shredded Parmesan
  • 2 oz cream cheese, softened
  • 1 tsp Dijon mustard
  • 1/4 tsp black pepper, ground
  • 1/4 tsp onion powder
  • 1/4 tsp garlic powder

Instructions

  1. Add the cauliflower pieces to the Ninja cooking pot and drizzle with the avocado oil. Toss with a silicone spatula until oil covers all the pieces.
  2. Close the lid and select the BAKE/ROAST function. Set the temperature to 375° and the time to 15 minutes. Press START.
  3. While the cauliflower cooks, mix the remaining ingredients together in a bowl for the cheese sauce.
  4. When the unit shuts off, lift the lid and pour the cheese sauce mixture over the cauliflower. Mix with the spatula until the cheese has mostly melted.
  5. Close the lid. Lower the temperature to 300° and bake for 5-10 minutes to brown the top.
  6. Serve as a side dish or as a vegetarian main.

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Nutrition Information for Ninja Foodi Cauliflower Cheese

Nutrition label for low carb Mac and cheese recipe with keto cheese sauce

Pin for Later

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