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Home » Recipes » Side Dishes

Baked Cheesy Cauliflower Rice

By: Kathryn Doherty | Last Updated: May 14, 2025 | Published: Feb 12, 2024
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Baked Cheesy Cauliflower Rice is a hot and cheesy casserole that’s just 5 ingredients and 30 minutes to make. This low-carb, gluten-free side is creamy and so flavorful!

A cheesy cauliflower rice casserole topped with bacon and chives after being baked.


 

Cauliflower is pretty close to magic in my book.

I could eat roasted cauliflower every other day and be oh so very happy.

(Maybe that’s why I use it to make things like cauliflower tacos.)

I love a mashed cauliflower casserole with cheese and bacon and my quick and easy cauliflower fried rice with chicken is a delicious dinner.

I’m even a fan of cauliflower crust pizza.

All the ways, all the time, gimme more cauliflower.

Today we’re making a baked cheesy cauliflower rice casserole.

It’s hot and cheesy, creamy and flavorful and has such a good consistency.

A baked cheesy cauliflower rice casserole in a white dish with bacon and green chives sprinkled on top.

It makes a very versatile side dish to serve with chicken, pork chops, or to use as a healthier version of mashed potatoes.

This recipe also is vegetarian, gluten-free, low carb and keto friendly.

A great one for accommodating a variety of dietary needs and preferences!

Plus, this is just 5 ingredients and all you have to do is mix everything together and put it in your baking dish.

Easy, easy!

OK, let's get cooking.

Ingredients laid out in separate bowls for a cheesy cauliflower rice.
A white mixing bowl with cauliflower rice topped with cheese and Greek yogurt and seasonings before being stirred together.
A creamy, cheesy cauliflower rice mixture in a mixing bowl with a spoon resting in it.
A cauliflower rice mixture spread out in a baking pan before being cooked.
Shredded cheese on top of a creamy cauliflower rice mixture in a white casserole dish before being baked.

Now, I’ve got some notes, tips and substitutions coming up below on how to make baked cheesy cauliflower rice. Just tryin’ to be helpful.

If you want to jump on down to the recipe, simply scroll right on through the rest of the text. The recipe card is near the bottom of the page, above the comments section.

Ingredient Notes:

  • Cauliflower: You can use a large bag of frozen cauliflower rice or make your own cauliflower rice from a medium to large head of cauliflower. You need about 5 ½ cups.
  • Sour cream: Sour cream or plain Greek yogurt are both fine to use here. Nonfat is fine as well if that’s what you have.
  • Mayonnaise: I like the texture and creaminess this gives. Reduced fat is fine to use. You can also sub more sour cream/Greek yogurt if you’d rather.
  • Cheese: We love a sharp cheddar cheese for this recipe, regular or white cheddar. You could also try this recipe with another type of cheese, like a Montery Jack or Mexican blend cheese.
A spoon scooping up some baked cheesy cauliflower rice from a white casserole dish.

As mentioned, this is just 5 ingredients total for the recipe. (Plus salt and pepper, but I don’t count those cause you better have some in your kitchen if you’re trying to cook!)

However, you can absolutely have some fun with toppings after this cauliflower casserole comes out of the oven.

Here are a few ideas.

Topping Ideas:

  • Chopped fresh chives
  • Sliced green onions
  • Chopped fresh herbs (such as parsley)
  • Cooked, crumbled bacon
  • Extra shredded cheese
  • Hot sauce or sriracha

Mix and match and use your favorites.

A serving of cheesy cauliflower rice served on a white plate with bacon and chives sprinkled on top.

Last thing, let’s talk about what to do with any leftovers.

Leftover cheesy cauliflower rice, once cooled, can be stored in the refrigerator for up to 3-4 days. Reheat until hot and serve.

I don’t recommend freezing it because the consistency and texture can be off after freezing and thawing.

A fork resting alongside a serving of cheesy cauliflower rice served on a white plate.

I hope you give this a try soon for a new healthy side dish!

Enjoy!

XO,

Kathryn

Close up of a baked cheesy cauliflower rice casserole in a white dish with bacon and green chives sprinkled on top.
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4 from 1 vote

Baked Cheesy Cauliflower Rice

Baked Cheesy Cauliflower Rice is a hot and cheesy casserole that’s just 5 ingredients and 30 minutes to make. This low-carb, gluten-free side is creamy and so flavorful!
Prep Time10 minutes mins
Cook Time20 minutes mins
Total Time30 minutes mins
Yield: 4 -6 servings

Ingredients

  • 24 oz. frozen cauliflower rice (or 1 large head of cauliflower, riced - about 5 ½ cups)
  • ¾ cup sour cream or plain Greek yogurt
  • ¼ cup mayonnaise (see notes)
  • 2 cups shredded sharp cheddar cheese, divided
  • 2 cloves garlic, minced
  • 1 teaspoon kosher salt
  • ½ teaspoon black pepper

Optional toppings:

  • Extra cheese, chopped fresh chives or green onions, chopped fresh herbs, cooked, crumbled bacon, hot sauce, etc.

Instructions

  • Preheat the oven to 400. Spray a 9x9 or 2-quart casserole dish with cooking spray.
  • In a large bowl, combine the riced cauliflower, sour cream, mayonnaise, 1 cup of shredded cheddar, garlic, salt and pepper. Mix well to combine then transfer to the prepared casserole dish and smooth into an even layer.
  • Sprinkle with the remaining 1 cup of cheese.
  • Bake at 400 for 20-25 minutes, until hot and cheese is melted. Serve and enjoy!

Notes

Cauliflower: You can use a large bag of frozen cauliflower rice or make your own cauliflower rice from a medium to large head of cauliflower. You need about 5 ½ cups.
Sour cream: Sour cream or plain Greek yogurt are both fine to use here. Nonfat is fine as well if that’s what you have.
Mayonnaise: I like the texture and creaminess this gives. Reduced fat is fine to use. You can also sub more sour cream/Greek yogurt if you’d rather.
Cheese: We love a sharp cheddar cheese for this recipe, regular or white cheddar. You could also try this recipe with another type of cheese, like a Montery Jack or Mexican blend cheese.
Leftovers: Leftover cheesy cauliflower rice, once cooled, can be stored in the refrigerator for up to 3-4 days. Reheat until hot and serve. I don’t recommend freezing it because the consistency and texture can be off after freezing and thawing.

Nutrition

Serving: 1serving | Calories: 318kcal | Carbohydrates: 10g | Protein: 15g | Fat: 25g | Saturated Fat: 11g | Polyunsaturated Fat: 11g | Trans Fat: 1g | Cholesterol: 60mg | Sodium: 567mg | Fiber: 2g | Sugar: 4g
Tried this recipe?Leave a comment below or follow me on Instagram @familyfoodonthetable and tag me in your photo!
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Reader Interactions

Comments

  1. Pat

    February 14, 2024 at 1:25 pm

    Not a comment, a question. Using frozen cauliflower it doesn’t say whether to cook first or not

    Reply
    • Kathryn Doherty

      February 16, 2024 at 3:34 pm

      Good question! Nope, nothing you need to do to the frozen cauliflower rice before mixing it in. (It does not need to be cooked according to the package directions first, it'll cook as part of the casserole.) Hope that helps!

      Reply
      • Molly

        March 26, 2024 at 10:54 am

        Does the frozen cauliflower rice need to be thawed and drained first so that there’s not so much excess water in the casserole? Or do you just mix it in frozen/ straight out of the freezer?

        Excited to try this! I also have a Mexican casserole that I am going to try to substitute cauliflower rice for yellow rice.

        Reply
        • Kathryn Doherty

          March 26, 2024 at 11:21 am

          Hi Molly, I just mix it right in! No need to thaw or drain the frozen cauliflower rice, just mix it with the other ingredients and place in the casserole dish. Hope that helps and hope you enjoy it! 🙂

          Reply
          • Molly

            March 26, 2024 at 4:48 pm

            Thanks for responding!

            Reply
  2. Dianne

    February 11, 2025 at 8:02 pm

    I love it! This is my second time making it.

    Reply
    • Kathryn Doherty

      February 12, 2025 at 7:53 am

      Yay! I'm so happy to hear that! Thanks for sharing!

      Reply
4 from 1 vote (1 rating without comment)

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Meet Kathryn

Hi there! I’m Kathryn Doherty, a cookbook author, mom of two, and devoted food and home cooking nut. I’ve got lots of easy recipes to help you get delicious food on the table for your family!

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