Low Carb Pizza Casserole

Name: Low Carb Pizza Casserole
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: Italian
Ingredients: 1 lb ground beef; 1 cup bell peppers, chopped; 1 cup onion, chopped; 1 jar (15 oz) pizza sauce; 2 cups mozzarella cheese, shredded; 1 tsp Italian seasoning; Salt and pepper to taste

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Posted on 14 November 2025

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Low Carb Pizza Casserole

For those seeking a delicious way to enjoy pizza flavors while keeping things low-carb, this pizza casserole is the perfect dish. It combines all the classic elements of pizza—savory meats, melty cheese, and rich sauce—into a layered casserole that is both hearty and satisfying. It’s an ideal meal for families, and its straightforward preparation means that you can whip it up even on the busiest of days.

What sets this casserole apart is that it’s not just low in carbs; it’s also packed with protein and flavor. Made with ground beef, fresh veggies, and a generous amount of gooey cheese, it’s a comforting dish that doesn’t skimp on taste. Whether you’re on a low-carb diet or simply looking for an easy weeknight dinner, this Low Carb Pizza Casserole is sure to become a new favorite.

Ingredients

1 lb ground beef
The heart of this casserole, ground beef provides a rich source of protein and flavor. Browning it safely at the outset ensures a deliciously savory base for the dish.
1 cup bell peppers, chopped
Bell peppers add crunch and a touch of sweetness, balancing the richness of the beef while also packing in essential vitamins.
1 cup onion, chopped
Onions contribute depth and savoriness to the dish, enhancing the overall flavor profile. As they cook down, they become sweet and aromatic.
1 jar (15 oz) pizza sauce
Pizza sauce is the star of the show, providing that classic pizza flavor that everyone loves. It ties all the ingredients together and adds moisture to the casserole.

2 cups mozzarella cheese, shredded
Known for its incredible melting qualities, mozzarella cheese forms a golden, gooey top layer that deliciously binds everything together, making each bite decadent.
1 tsp Italian seasoning
This blend of herbs lends an authentic Italian flair, infusing the casserole with aromatic and zesty undertones that perfectly complement the pizza sauce.
Salt and pepper to taste
Essential for rounding out the flavors in the dish, salt and pepper ensure that each bite is seasoned to perfection.

Directions & Preparation

Preheat oven to 350°F (175°C).
Preheating the oven is vital to ensure that your casserole cooks evenly and efficiently. A well-preheated oven helps achieve that perfect bubbling and browning on top as soon as the dish is placed inside.
In a skillet, brown the ground beef over medium heat. Drain excess fat.
Browning the ground beef adds depth to its flavor through the Maillard reaction. Draining the fat prevents the casserole from becoming greasy, allowing the other flavors to shine through.
Add the chopped bell peppers and onions to the skillet, cooking until softened.
Sautéing the vegetables alongside the beef not only enhances their flavors but also softens them, allowing their natural sweetness to develop. This step results in a more balanced and textured final dish.

Stir in the pizza sauce, Italian seasoning, salt, and pepper.
Combining these ingredients creates a robust and well-seasoned mixture. The sauce coats all the elements, ensuring that every bite is infused with reimagined pizza flavors.
In a greased casserole dish, layer half of the beef mixture, half of the cheese, and then the remaining beef mixture. Top with the remaining cheese.
Layering ensures that the flavors are distributed evenly throughout the dish. The cheese on top creates a protective barrier, locking in moisture and flavor while forming a golden crust.
Bake in the preheated oven for 20-25 minutes until the cheese is melted and bubbly.
Baking allows the flavors to meld together wonderfully while the cheese bubbles and browns. Keep an eye on it in the latter part of the baking time to achieve the desired level of browning.

Let it cool for a few minutes before serving.
Allowing the casserole to cool slightly makes it easier to slice and serve. This resting period also helps enhance the texture, allowing the layers to set just right.

The Secret to a Flavorsome Filling

To make this casserole more unique, experiment with the filling! Adding toppings such as pepperoni slices, olives, or mushrooms can elevate the flavor. Incorporating these extras not only enhances the taste but also makes the dish visually appealing. Remember to keep the overall ingredient list in balance to maintain that delicious low-carb profile.

Making It a Meal

Pairing this Low Carb Pizza Casserole with a fresh side salad can elevate your dining experience. A crisp salad offers a refreshing contrast to the rich casserole and adds additional nutrients. Dress it with a light vinaigrette to further amp up the flavors and create a well-rounded meal.

Easy Leftovers

This casserole is perfect for leftovers. Store any uneaten portions in an airtight container for a quick lunch or dinner the next day. Reheating is a breeze in the microwave, or you can pop it back in the oven to regain that freshly baked texture. The flavors tend to deepen after a day, making it even more enjoyable.

FAQs

Can I substitute ground turkey for ground beef?
Yes, ground turkey can be used for a leaner option. Adjust the cooking time slightly, as turkey may cook faster than beef.

What if my casserole is too thick?
If your casserole appears too thick after baking, try adding a splash of water or extra pizza sauce when you reheat it. This will moisten it and help retain a better texture.

Is there a vegetarian option for this casserole?
Absolutely! Substitute ground beef with a plant-based meat alternative or use vegetables like zucchini, spinach, or mushrooms for a hearty and satisfying veggie version.

Can I use a different type of cheese?
While mozzarella is classic, feel free to experiment with provolone or cheddar for a sharper flavor. Mixing cheeses can create a delightful flavor profile.

How can I tell when the casserole is done?
Look for bubbling cheese and a golden crust on top. Inserting a knife into the center should come out hot to the touch.

Can I scale this recipe for a larger crowd?
Yes, you can double the ingredients and use a larger casserole dish. Just ensure to adjust the cooking time, as a larger quantity might need additional baking.

Why does my casserole taste bland?
If your casserole lacks flavor, it may need extra seasoning. Always taste the mixture before layering it in the dish and adjust salt, pepper, and Italian seasoning accordingly.

What’s the best way to store leftovers?
Keep leftovers in an airtight container in the fridge for up to three days. Reheat in the microwave or oven until warmed through for the best texture.

Conclusion

This Low Carb Pizza Casserole is a simple yet satisfying meal that captures all the flavors of pizza in a comforting format. It’s perfect for busy weeknights or those lazy weekends when you crave something savory but want to keep it light. Not only is it quick to prepare, but it also offers endless opportunities for customization to suit your tastes.

So gather up the ingredients and prepare to delight in this flavorful dish that everyone in the family will love. Enjoy the pizza experience minus the carbs and get ready to savor every delicious bite!