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Keto Pizza Casserole: Deep Dish Pepperoni

Looking for a mouthwatering keto pizza casserole recipe the whole family will love? Try this Keto Deep Dish Pepperoni Pizza Casserole! Bonus points: it even sneaks in vegetables in the form of a cauliflower-and-cheese crust.

keto pizza casserole with cheese and pepperoni

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Deep dish pizza. Bet you didn’t think you’d ever be able to eat something like that on keto, did you?! I’m so excited to bring you this Keto Deep Dish Pepperoni Pizza casserole (I love a good casserole!) recipe to help make all your keto pizza dreams come true. 🙂 This is something the whole family will love and will make a healthy-but-delicious addition to pizza night.

This is a fabulous and easy-to-make keto Italian recipe. Also, another popular keto dinner idea is this fabulous Italian Keto Chicken Alfredo. In addition to keto Italian recipes we have a whole assortment of additional keto casserole recipes, keto pizzas, keto salads and keto soup recipes. 

Keto Pizza Casserole

…and why you’ll love it!

  • This is the perfect family meal! Everyone will enjoy digging into their piece of this yummy casserole.
  • It sneaks in veggies in the form of a cauliflower-and-cheese crust. This low carb casserole is a great way to get your kids to eat their vegetables!
  • It’s ready in under an hour.
  • Did you see all that cheese up there?! Enough said. 😉

Ingredients Needed to Make this Low Carb Pizza Casserole Recipe

Ingredient quantities are located in the recipe card at the end of the post.

  • Cauliflower rice — yep, this keto pizza actually has veggies in it!
  • Egg
  • Shredded Cheddar cheese
  • Italian seasoning
  • Non-stick cooking spray
  • Sugar-free pizza sauce — I used Rao’s
  • Mozzarella cheese
  • Pepperoni slices
  • Salt and pepper

How to Make Keto Cauliflower Pizza Casserole

This is just a quick overview of how to make the cauliflower pizza casserole. For the recipe in detail, scroll to the recipe card at the end of the post.

Prep your casserole base (cauliflower crust) and bake it until golden brown.

cauliflower pizza casserole with cheese

Then, add in your yummy sugar-free pizza sauce, cheese, and pepperoni.

TIP: If you like a sweeter sauce, feel free to add keto-friendly sweetener to taste to your sauce before adding it to the dish.

low carb pizza casserole keto with pepperoni and cheese

Bake to melt the cheese… and out comes this oh-so-delicious keto casserole!

low carb crustless pizza casserole in a baking dish with pepperoni and cheese

Is Pizza Okay on the Keto Diet?

To be successful on the keto diet, you must avoid eating traditional pizza with flour crusts and other high carbohydrate crusts. A popular style of no crust pizza on the keto diet is the keto pizza casserole. However, some low carb pizza crusts are acceptable, including:

  • Fathead Dough Crust (using either almond flour or coconut flour)
  • Cauliflower Crust (sometimes, see below)

Are All Cauliflower Pizzas Keto-Friendly?

Unfortunately, no. The cauliflower crust in this recipe most certainly is, but I’ve seen plenty of cauliflower crust pizzas popping up in restaurants and the freezer section of the grocery store that are not keto-friendly. They’re low carb, but too high in carbs for a keto diet. Always check nutrition facts before consuming a cauliflower crust pizza!

Where Do I Find Keto Pizza Sauce?

When sourcing keto pizza sauce, you want to look for a sauce that contains no added sugar. With high-carb sugar eliminated, you’ll find that many pizza sauces are surprisingly low in carbs! My favorite brand is Rao’s, which contains only 3g net carbs per 1/4 cup. I’ve found Rao’s at Walmart, Meijer, and Kroger.

Is it Easy to Make a Keto Pizza Crust?

Yes, most keto pizza crusts have about 5 ingredients or less and require a minimal amount of time to prepare and bake. Here are a few additional keto pizza recipes you will love!

keto pizza casserole in serving dish with pepperoni and cheese

What Can I Serve with My Casserole?

Since this casserole is a little low in fat, I highly recommend serving it with a small side salad topped with keto ranch dressing! Also, nothing beats a few more Italian options when you are eating Italian! Try some delicious Keto Garlic BreadKeto Antipasto Salad and Keto Mac and Cheese on the side.

Love Pepperoni?

Then I highly suggest making these easy keto pepperoni chips for a fun no-carb snack.

Nutrition Facts for this Keto Pizza Bake

Per serving:

  • 181 calories
  • 11g fat
  • 12g protein
  • 6g net carbs

More Keto Casseroles

Some other keto casseroles that are huuugely popular including some of our Keto Chicken Casserole recipes:

keto cauliflower pizza casserole in serving dish

More Keto Pizza

People also make these Keto Pizza recipes:

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keto low carb pizza casserole in serving dish with pepperoni and cheese

Keto Pizza Casserole: Deep Dish Pizza

5 from 3 votes
Print Pin Rate
Course: Dinner, Main Course
Cuisine: American
Keyword: cauliflower pizza casserole, crustless pizza, keto pizza casserole, low carb pizza casserole, no crust pizza, pizza casserole low carb
Prep Time: 5 minutes
Cook Time: 43 minutes
Total Time: 48 minutes
Servings: 6
Calories: 181kcal


  • 1 1/2 pounds cauliflower rice
  • 1 large egg
  • 1/2 cup shredded Cheddar cheese
  • 1 teaspoon Italian seasoning
  • 1/4 teaspoon salt
  • 1/8 teaspoon pepper
  • Non-stick cooking spray
  • 1 cup sugar-free pizza sauce I used Rao’s
  • 1 cup shredded Mozzarella cheese
  • 16 slices pepperoni


  • Preheat oven to 450°.
  • Heat cauliflower rice in a medium bowl in the microwave for 8 minutes. Carefully transfer mixture to a clean kitchen towel or cheesecloth. Squeeze cauliflower over sink to drain liquid from cloth. Transfer cauliflower to a medium bowl to cool slightly.
  • Add egg, Cheddar cheese, Italian seasoning, salt, and pepper to cauliflower and mix to combine well.
  • Transfer mixture to an 8- x 8-inch baking dish lightly coated with cooking spray. Spread mixture over bottom and up sides of pan to about a 1/4-inch thickness.
  • Bake at 450° for 22-25 minutes or until golden brown.
  • Spread pizza sauce evenly over bottom of crust. Top with Mozzarella cheese and pepperoni slices.
  • Bake the keto pizza casserole for an additional 10 minutes to melt cheese.


  • You can use regular pepperoni or turkey pepperoni depending on your preferences.
  • If you like a sweeter sauce, feel free to add keto-friendly sweetener to taste to your sauce before adding it to the dish.
People who liked this keto casserole dish also made Keto Meatball Casserole, Keto Cheeseburger Casserole and Keto Tuna Casserole.
Keto Side Dishes that go with this dish includes: Keto Garlic Bread, Keto Mac and Cheese and Keto Antipasto Salad.
Nutrition Facts
Keto Pizza Casserole: Deep Dish Pizza
Amount Per Serving
Calories 181 Calories from Fat 99
% Daily Value*
Fat 11g17%
Carbohydrates 9g3%
Fiber 3g13%
Protein 12g24%
* Percent Daily Values are based on a 2000 calorie diet.

Nutrition Disclaimer

Nutrition facts are included as a courtesy only. They are accurate to the best of our knowledge based on the ingredients and brands used, but their accuracy is not guaranteed. If applicable, sugar alcohols have already been removed from the total carb count.


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Recipe Rating

  • 5 stars
    I was surprised how good this Keto Pizza Casserole is. I had concerns that the cauliflower rice in the crust would take away from the flavor but I was so wrong. My kids loved this pizza casserole as well as me. I will certainly be making this many times in the future. It is so simple to prepare which is also a big plus.

  • 5 stars
    This recipe for Keto Pizza Casserole is very good. I made this pizza casserole for dinner last night. My three kids and I loved it. I was surprised the cauliflower worked so well in a pizza dish. The recipe was simple and I will be making it again.

Welcome! I’m Jessica.

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