Looking for a delicious low-carb comfort food recipe? This hearty Keto Pizza Casserole is ready in under an hour and is so easy to throw together with your favorite toppings!
When that pizza craving strikes, this delicious keto pizza casserole is sure to satisfy! With a crispy base, golden melted cheese, and a few of your favorite toppings, you’ll be in pizza heaven.
Most pizza casserole recipes use pasta or starch bases that make them very high in carbs. By using cauliflower instead, we drastically reduce the carbs while still getting a nice, hearty base for the casserole.
And once you add a bit of marinara, cheese, and the toppings of your choice, you’ll have the perfect comfort food to enjoy guilt free!
You can go with a classic pepperoni pizza like I do, or get creative with your favorite pizza toppings. If sharing with friends or family, you could even do half of one topping and half of another to keep everyone happy!
No matter how you prep this dish, one thing is for sure: this cheesy casserole will be a hit at any table.
How to make keto pizza casserole
This recipe is as easy as pizza pie! We cook the cauliflower, bake it until crispy, then add the pizza toppings and bake until the cheese is melted. It’s that simple!
Step 1: Preheat your oven to 400F (200°C).
Step 2: Cook the cauliflower rice in a pot of boiling water for 10 minutes until soft. Drain and wring out as much excess liquid as possible.
Step 3: Add all of the ingredients for the cauliflower base to a medium mixing bowl. Stir until well-combined.
Step 4: Transfer the base to a casserole dish or large cast-iron skillet. Smooth over the surface and press down the base gently.
Step 5: Bake the base for 20 minutes until lightly browned on the top and edges, then remove from the oven.
Step 6: Spread the marinara sauce over the baked cauliflower base.
Step 7: Add more mozzarella cheese and your desired toppings.
Step 8: Bake the pizza casserole for 15 minutes, then turn the oven to broil for a few more minutes until toppings are crispy and cheese is golden. Remove from oven and serve immediately.
You’ll be amazed how well this hearty casserole satisfies any pizza craving! The combination of the crunchy cauliflower base with the flavors of the marinara and the delicious, melted cheese pack in all the comforts of traditional pizza without the excess carbs.
With a recipe this easy, you can skip the unhealthy delivery pizza and whip this up instead!
Making the cauliflower base
One of the most important steps to achieving a nice, crunchy base is to wring out as much water as you can after boiling the cauliflower rice. I recommend using a fine-mesh strainer or a kitchen towel to make it easy. This will allow it to crisp up as much as possible when baking.
As long as it’s properly dried out, cauliflower is such a versatile ingredient. There are plenty of ways to play around with it!
For example, try adding in your own vegetables to give the base extra crunch and flavor. Broccoli, grated carrots, and chopped zucchini are all great low carb veggies to try.
You could also add in extra herbs for even more flavor. Try garlic powder for a subtle addition, or throw in some fresh rosemary or basil to really spice it up!
Also, this casserole can be baked in any dish that is oven safe. I like to use a cast iron skillet to get a nice round pizza shape, but any baking dish will be just fine.
Choosing your toppings
I love a classic pepperoni pizza. That’s why my go-to toppings are low-carb marinara, mozzarella cheese, and pepperoni. It’s such a simple, tasty flavor combination!
But you can add any toppings you want to your pizza casserole. Maybe that’s something like different cheeses, diced bell peppers or Jalapeños, or sliced mushrooms. You can also switch up the protein by using bacon or sausage instead of pepperoni.
Or, go for a totally different flavor profile! This casserole would be incredible with some pesto in place of the marinara and then shredded chicken and feta for your toppings.
Keep in mind that this recipe is higher in sodium if you use regular mozzarella and pepperoni. If you’re trying to limit your sodium intake, you can use low-sodium cheese and other toppings.
Feel free to experiment and have some fun with this low carb pizza casserole. You really can’t go wrong!
Leftovers can be stored in an airtight container in the refrigerator for 3-4 days.
You can also prep your casserole in advance if you’re looking for some easy meal prep or want an easy meal to serve to family and friends. Simply bake the cauliflower base, add your toppings, then cover and refrigerate. When you’re ready to serve, finish baking the casserole like normal!
More tasty keto recipes to try
If you’re looking for more low-carb, high fat inspiration, I put together a ketogenic meal plan to make it easy. You can also try a few of these favorite keto recipes:
For even more low carb recipe inspiration, check out this roundup of 10 healthy low-carb dinner recipes!
When you’ve tried this dish, please don’t forget to let me know how you liked it and rate the recipe in the comments below!
Keto Pizza Casserole
For the base
- 5 cups raw cauliflower rice
- 1 cup mozzarella cheese (grated)
- 1 tablespoon dried Italian herbs (you can use a mix of thyme, basil and oregano)
- 1/2 teaspoon salt
- 1 teaspoon pepper
- 1/4 cup low-carb marinara sauce
- 1 cup mozzarella cheese (grated)
- 2 oz. pepperoni slices
- other desired toppings
- Preheat your oven to 400F (200°C).
- Cook the cauliflower rice in a pot of boiling water for 10 minutes until soft. Drain and wring out as much excess liquid as possible.
- Add all of the ingredients for the cauliflower base to a medium mixing bowl. Stir until well-combined.
- Transfer the base to a casserole dish or large cast-iron skillet. Smooth over the surface and press down the base gently.
- Bake the base for 20 minutes until lightly browned on the top and edges, then remove from the oven.
- Spread the marinara sauce over the baked cauliflower base.
- Add more mozzarella cheese and your desired toppings.
- Bake the pizza casserole for 15 minutes, then turn the oven to broil for a few more minutes until toppings are crispy and cheese is golden. Remove from oven and serve immediately.