Keto Cauliflower Pizza Casserole
If you’re looking for a delicious and healthy dinner option that the whole family will love, then you need to try this Keto Cauliflower Pizza Casserole! This dish brings all the flavors of your favorite pizza into a wholesome, low-carb meal. Perfect for busy weeknights or casual family gatherings, it’s an effortless one-dish wonder that’s sure to impress. Plus, it’s so easy to make that even the kids can help out!
This casserole is a delightful way to enjoy cauliflower, transforming it into something comforting and satisfying. With just a handful of simple ingredients, you’ll have a hearty meal on the table in no time.
Why You’ll Love This Recipe
- Quick Preparation: This casserole comes together in just about 40 minutes, making it an ideal choice for those hectic weeknights.
- Family-Friendly: Kids love pizza, and this recipe makes it healthier without sacrificing any of the cheesy goodness.
- Flexible Ingredients: You can easily customize this dish with your favorite toppings or swap out ingredients based on what you have on hand.
- Low-Carb Delight: Perfect for those following a keto diet, this casserole provides all the flavors of pizza without the carbs.
- One-Dish Wonder: Less cleanup means more time to enjoy dinner together as a family!

Ingredients You’ll Need
Making this Keto Cauliflower Pizza Casserole is simple thanks to wholesome ingredients that are easy to find. 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
This recipe is wonderfully flexible! Feel free to get creative with your ingredients and tailor it to your taste preferences. Here are some fun ideas:
- Swap the protein: Use chicken or turkey sausage instead of turkey pepperoni for a different flavor profile.
- Add veggies: Toss in some bell peppers, mushrooms, or spinach for extra nutrition and flavor.
- Change up the cheese: Try swapping mozzarella with provolone or even vegan cheese for a dairy-free option.
- Make it spicy: Add crushed red pepper flakes or jalapeños for a kick!
How to Make Keto Cauliflower Pizza Casserole
Step 1: Preheat Your Oven
First things first—preheat your oven to 425 degrees. This step is crucial as it ensures your casserole cooks evenly and gets that lovely golden top.
Step 2: Prepare the Cauliflower
Place your cauliflower florets in a 9×13 baking dish and drizzle them with olive oil. Sprinkle salt, pepper, and garlic powder over them. Toss everything together until well-coated. This helps enhance the flavor of the cauliflower while roasting.
Step 3: Roast the Cauliflower
Spread the cauliflower into an even layer at the bottom of your dish. Bake for about 20-25 minutes until they start turning slightly brown. Roasting brings out their natural sweetness and gives them a wonderful texture.
Step 4: Add Sauce and Cheese
Once your cauliflower has roasted perfectly, take it out and spoon marinara sauce evenly over the top. Then sprinkle on that gooey shredded cheese along with Italian seasoning. This layer is what gives that classic pizza flavor we all love!
Step 5: Top It Off
Now it’s time to add your turkey pepperoni (or whichever toppings you’ve chosen). Spread them generously across the cheesy layer—this adds both flavor and fun!
Step 6: Bake Again
Pop your casserole back in the oven for another 12-15 minutes until the cheese is melted and bubbly. Keep an eye on it; you want that beautiful golden color without burning!
And there you have it—a warm, comforting Keto Cauliflower Pizza Casserole that’s perfect for any occasion! Enjoy every bite with family and friends!
Pro Tips for Making Keto Cauliflower Pizza Casserole
Making this Keto Cauliflower Pizza Casserole is a breeze, but a few handy tips can elevate your dish to the next level!
- Choose Fresh Cauliflower: Fresh cauliflower not only has better flavor and texture but also holds up well during baking. Look for heads that are firm and free from any brown spots.
- Get Creative with Toppings: While turkey pepperoni is delicious, don’t hesitate to experiment with other toppings like bell peppers, olives, or mushrooms. This adds variety and makes the dish even more satisfying.
- Even Layering is Key: Make sure your cauliflower is arranged in an even layer before baking. This ensures that all pieces cook evenly and become beautifully golden.
- Give it Extra Flavor: Enhance the flavor by adding fresh herbs like basil or parsley before serving. A sprinkle of fresh herbs brings brightness to the casserole and complements the Italian flavors perfectly.
- Store Leftovers Wisely: If you have leftovers, store them in an airtight container in the fridge for up to three days. Reheat gently in the oven for best results, keeping the cheese nice and melty.
How to Serve Keto Cauliflower Pizza Casserole
This casserole is not only delicious but also visually appealing! Here are some ideas on how to present this delightful dish to your family or guests.
Garnishes
- Fresh Basil: A sprinkle of chopped fresh basil adds a burst of color and freshness that pairs wonderfully with the marinara sauce.
- Crushed Red Pepper Flakes: For those who enjoy a little heat, a dash of crushed red pepper flakes can spice things up beautifully.
- Parmesan Cheese: Grating some dairy-free parmesan cheese on top right before serving adds a savory touch that enhances every bite.
Side Dishes
- Mixed Green Salad: A light salad with mixed greens, cucumbers, and a lemon vinaigrette balances out the richness of the casserole while providing a refreshing crunch.
- Zucchini Noodles: These low-carb noodles are perfect for soaking up any extra marinara sauce left on your plate. Simply sauté them lightly for a quick side!
- Garlic Roasted Broccoli: Toss broccoli florets in olive oil, garlic powder, and a pinch of salt before roasting. The crispy edges make it an ideal companion for this cheesy casserole.
- Cauliflower Rice: Keeping with the theme, cauliflower rice can be seasoned with herbs and spices to create another layer of flavor without adding carbs.
Enjoy making this Keto Cauliflower Pizza Casserole your own! It’s sure to be a hit at your dinner table.

Make Ahead and Storage
This Keto Cauliflower Pizza Casserole is perfect for meal prep! You can make it in advance, allowing you to enjoy a delicious low-carb dinner throughout the week without any hassle.
Storing Leftovers
- Let the casserole cool completely before storing.
- Transfer leftovers to an airtight container.
- Store in the refrigerator for up to 4 days.
Freezing
- Allow the casserole to cool completely.
- Cut into portions for easier thawing.
- Wrap tightly with plastic wrap and aluminum foil or place in a freezer-safe container.
- Freeze for up to 3 months.
Reheating
- Thaw overnight in the refrigerator if frozen.
- Reheat in the oven at 350 degrees Fahrenheit until warmed through (about 15-20 minutes).
- Alternatively, microwave individual portions until hot.
FAQs
Have questions about this delightful dish? Here are some common queries answered!
Can I use fresh cauliflower for the Keto Cauliflower Pizza Casserole?
Absolutely! Fresh cauliflower works wonderfully in this recipe. Just be sure to cut it into small florets for even cooking.
What other toppings can I add to my Keto Cauliflower Pizza Casserole?
Feel free to get creative! You can add bell peppers, mushrooms, olives, or even spinach for added flavor and nutrition. Just ensure they are low-carb options!
How do I make the Keto Cauliflower Pizza Casserole spicier?
If you like a little heat, consider adding red pepper flakes or your favorite spicy sauce on top before baking.
Can I substitute turkey pepperoni in the Keto Cauliflower Pizza Casserole?
Yes! You can use any of your favorite low-carb toppings, such as grilled chicken, turkey sausage, or even veggies!
Final Thoughts
I hope you find joy in making this Keto Cauliflower Pizza Casserole! It’s a special dish that brings comfort and satisfaction while keeping things healthy. Whether you’re enjoying it solo or sharing with family and friends, I’m sure it will become a new favorite. Happy cooking!
Keto Cauliflower Pizza Casserole
Indulge in a comforting yet healthy dinner option with this Keto Cauliflower Pizza Casserole. This low-carb dish captures all the flavors of your favorite pizza while being family-friendly and simple to prepare. With just a handful of wholesome ingredients, you can create a cheesy, satisfying meal that everyone will love. Perfect for busy weeknights, this one-dish wonder is not only easy to make, but it’s also an excellent way to sneak in some veggies!
- Prep Time: 10 minutes
- Cook Time: 37 minutes
- Total Time: 47 minutes
- Yield: Serves 6
- Category: Dinner
- Method: Baking
- Cuisine: Italian
Ingredients
- 1 large head of cauliflower (cut into small florets)
- 2 tbsp olive oil
- 1 (24 oz) jar marinara sauce
- 2 cups shredded mozzarella cheese
- Salt, pepper, garlic powder, & Italian seasoning to taste
- Turkey turkey pepperoni (or toppings of choice)
Instructions
- Preheat your oven to 425 degrees Fahrenheit.
- Place the cauliflower florets in a baking dish and drizzle with olive oil. Season with salt, pepper, and garlic powder; toss well.
- Roast the cauliflower for 20-25 minutes until slightly browned.
- Remove from oven and spread marinara sauce over the roasted cauliflower.
- Sprinkle shredded mozzarella cheese and Italian seasoning on top.
- Add turkey turkey pepperoni or desired toppings.
- Bake for an additional 12-15 minutes until the cheese is melted and bubbly.
Nutrition
- Serving Size: 1 cup (250g)
- Calories: 320
- Sugar: 6g
- Sodium: 780mg
- Fat: 20g
- Saturated Fat: 8g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 16g
- Fiber: 6g
- Protein: 18g
- Cholesterol: 40mg
