Keto Cauliflower Pizza Casserole
If you’re looking for a comforting and delicious dinner that the whole family will love, you’ve come to the right place! This Keto Cauliflower Pizza Casserole is one of my go-to recipes when I want something quick yet satisfying. It’s perfect for those busy weeknights when time is short but you still want to serve a meal that’s both healthy and full of flavor. With just one baking dish and a handful of simple ingredients, you can whip up a dish that feels indulgent without the carbs.
What makes this casserole even more special is how customizable it is. Whether you’re hosting a family gathering or just enjoying a cozy night in, this recipe brings everyone together around the table. Plus, the kids will love it just as much as the adults!
Why You’ll Love This Recipe
- Quick and Easy: This casserole comes together in no time, making it ideal for busy weeknights.
- Family-Friendly: With its cheesy goodness and tasty toppings, everyone will be asking for seconds!
- Low Carb Delight: Enjoy all the flavors of pizza without the guilt—it’s keto-friendly!
- Make-Ahead Convenience: Assemble it earlier in the day and pop it in the oven when you’re ready to eat.
- Delicious Flavor: The combination of roasted cauliflower, marinara sauce, and melty cheese will have your taste buds dancing!

Ingredients You’ll Need
Gathering your ingredients for this Keto Cauliflower Pizza Casserole is super easy! You likely have most of these wholesome items on hand already. Here’s what you’ll need:
For the Casserole
- 1 large head of cauliflower, cut into small florets
- 2 tbsp olive oil
- 1 (24oz) jar marinara sauce
- 2 cups shredded mozzarella cheese
- Salt, pepper, garlic powder, & Italian seasoning to taste
- Turkey pepperoni, or toppings of choice
Variations
One of the best things about this recipe is its flexibility! Feel free to mix things up based on your preferences or what you have in your pantry. Here are some fun variations:
- Swap the protein: Use sliced turkey sausage or grilled chicken instead of turkey pepperoni for a different flavor.
- Add veggies: Stir in some bell peppers, mushrooms, or spinach before baking for extra nutrition.
- Change the cheese: Try using cheddar or a dairy-free cheese alternative if you’re looking for something different.
- Go spicy: Add some crushed red pepper flakes or jalapeños for a little kick!
How to Make Keto Cauliflower Pizza Casserole
Step 1: Preheat Your Oven
First things first—preheat your oven to 425 degrees Fahrenheit. This ensures that your casserole cooks evenly and gets that lovely golden color.
Step 2: Prepare the Cauliflower
In a 9×13 baking dish, toss those fresh cauliflower florets with olive oil, salt, pepper, and garlic powder. This step not only adds flavor but also helps to crisp up the cauliflower as it roasts in the oven.
Step 3: Roast the Cauliflower
Arrange the seasoned cauliflower into a single layer on the bottom of your dish. Bake it for about 20-25 minutes until it starts turning slightly brown. Roasting enhances its natural sweetness and gives it that delightful texture.
Step 4: Add Marinara Sauce
Once your cauliflower is roasted beautifully, take it out of the oven and spoon that luscious marinara sauce over top. Spread it evenly so every bite gets saucy goodness!
Step 5: Cheese It Up!
Now it’s time to sprinkle on that shredded mozzarella cheese along with Italian seasoning. The cheese will melt beautifully in the oven, creating a gooey layer that holds everything together.
Step 6: Top with Toppings
Finish off by adding turkey pepperoni or any other toppings you’ve chosen. Pop it back into the oven for another 12-15 minutes until everything is hot and bubbly—your kitchen will smell amazing!
And there you have it—a delicious Keto Cauliflower Pizza Casserole that’s sure to become a family favorite! Enjoy every cheesy bite!
Pro Tips for Making Keto Cauliflower Pizza Casserole
This casserole is not only easy to prepare but can also be customized to suit your tastes perfectly! Here are some handy tips to ensure your dish turns out fantastic every time.
- Choose fresh cauliflower: Fresh cauliflower will give you the best texture and flavor. Avoid using frozen florets, as they can become mushy during baking.
- Get creative with toppings: Don’t limit yourself to turkey pepperoni; consider adding bell peppers, olives, or mushrooms for extra flavor and variety. These add both nutrition and vibrant colors to your dish.
- Adjust the spices: Feel free to tweak the seasoning according to your preference. Adding red pepper flakes can lend a spicy kick, while additional herbs like oregano or basil can enhance the Italian flavor profile.
- Let it cool before serving: Allowing the casserole to sit for a few minutes after baking helps it set up nicely, making it easier to serve without falling apart.
- Store leftovers properly: If you have any leftovers, store them in an airtight container in the fridge for up to three days. Reheat in the oven or microwave for a quick meal!
How to Serve Keto Cauliflower Pizza Casserole
Presenting your Keto Cauliflower Pizza Casserole can elevate the dining experience! Here are some ideas to make your dish look irresistible.
Garnishes
- Fresh basil leaves: A sprinkle of fresh basil adds a pop of color and a burst of freshness that complements the flavors beautifully.
- Grated Parmesan cheese: A light dusting of Parmesan over the top gives an extra cheesy finish and enhances the overall taste.
Side Dishes
- Mixed Green Salad: A simple salad with mixed greens, cherry tomatoes, and a light vinaigrette offers a refreshing contrast to the rich casserole.
- Garlic Roasted Broccoli: Toss broccoli florets with olive oil, garlic powder, and a pinch of salt, then roast until tender. This side brings out great flavors that pair well with pizza!
- Zucchini Noodles: Lightly sautéed zucchini noodles provide a low-carb alternative that adds volume and makes for a satisfying meal.
- Cauliflower Rice: For those who want more cauliflower goodness, serve alongside some seasoned cauliflower rice. It’s low-carb, filling, and complements the pizza flavors perfectly!
Enjoy making this delicious and healthy meal with your family!

Make Ahead and Storage
This Keto Cauliflower Pizza Casserole is not only delicious but also perfect for meal prep! You can make it ahead of time, store it, and enjoy it throughout the week.
Storing Leftovers
- Allow the casserole to cool completely before storing.
- Cover tightly with plastic wrap or transfer to an airtight container.
- Store in the refrigerator for up to 4 days.
Freezing
- Let the casserole cool completely before freezing.
- Cut into portions and wrap each piece tightly in plastic wrap, then place in a freezer-safe bag.
- Freeze for up to 3 months for optimal freshness.
Reheating
- For best results, thaw overnight in the refrigerator before reheating.
- Reheat individual portions in the microwave for about 1-2 minutes or until heated through.
- For a crispy top, reheat in the oven at 350 degrees for about 10-15 minutes.
FAQs
Here are some common questions you might have about making this dish:
Can I use frozen cauliflower for this Keto Cauliflower Pizza Casserole?
Yes! Frozen cauliflower works well, just be sure to thaw and drain any excess moisture before using it in the casserole.
What toppings can I add to my Keto Cauliflower Pizza Casserole?
Feel free to customize your casserole with your favorite toppings! Consider adding bell peppers, olives, mushrooms, or even some fresh basil on top after baking.
How many servings does this Keto Cauliflower Pizza Casserole yield?
This recipe yields approximately 6 servings, making it a great option for family dinners or meal prep.
Final Thoughts
I hope you find joy in preparing this Keto Cauliflower Pizza Casserole as much as I do! It’s a fantastic way to enjoy a comforting pizza experience while sticking to your health goals. Whether you’re feeding a hungry family or preparing meals for yourself, this dish is sure to delight. Happy cooking, and don’t forget to share your creations!
Keto Cauliflower Pizza Casserole
If you’re in search of a hearty and satisfying meal that the whole family can enjoy, look no further than this Keto Cauliflower Pizza Casserole. This dish perfectly captures all the delightful flavors of pizza while being low in carbs, making it an excellent choice for busy weeknights or meal prep. With minimal effort and just one baking dish, you can create a delicious casserole that’s both nutritious and indulgent. Featuring roasted cauliflower, rich marinara sauce, and melty cheese, this recipe is not only comforting but also easily customizable to suit your taste. Whether it’s a family dinner or a cozy night in, this casserole will surely become a favorite!
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
- Yield: Approximately 6 servings 1x
- Category: Main
- Method: Baking
- Cuisine: Italian
Ingredients
- 1 large head of cauliflower, cut into small florets
- 2 tbsp olive oil
- 1 (24oz) jar marinara sauce
- 2 cups shredded mozzarella cheese
- Salt, pepper, garlic powder, and Italian seasoning to taste
- Turkey turkey pepperoni, or toppings of choice
Instructions
- Preheat your oven to 425°F (220°C).
- In a 9×13 baking dish, toss cauliflower florets with olive oil and seasonings.
- Roast the seasoned cauliflower for 20-25 minutes until slightly browned.
- Remove from oven and spread marinara sauce over the cauliflower evenly.
- Sprinkle mozzarella cheese on top along with Italian seasoning.
- Add turkey turkey pepperoni or any preferred toppings.
- Return to the oven for an additional 12-15 minutes until hot and bubbly.
Nutrition
- Serving Size: 1/6 of casserole (approximately 200g)
- Calories: 320
- Sugar: 6g
- Sodium: 590mg
- Fat: 22g
- Saturated Fat: 10g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 14g
- Fiber: 5g
- Protein: 18g
- Cholesterol: 50mg
