Pizza Casserole
This Pizza Casserole is an easy way to enjoy all taste of pizza without the hassle and carbs of the dough. Featuring cheese, black olives, green peppers, pepperoni, ground sausage and mushrooms, this is a simple solution for pizza night that is a lot healthier for your family (and your wallet) without compromising any of the taste!

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Pizza Casserole is a great dish for any day of the week. It is so easy to throw together on a weekday and you can make a large enough batch for the next day too. Make it for a fun Friday night dinner and stretch it into Saturday with your leftovers.
The best part of this Pizza Casserole, as with most pizzas, is that it is very customizable. You can add or remove the toppings as you please. It's also super convenient in that you can pre-assemble and bake it the next day.
Why You'll Love This Recipe:
Easy weeknight dinner: Comes together quickly with simple pantry ingredients.
All the pizza flavor: Classic toppings baked into a cheesy, hearty casserole.
Family favorite: Kid-approved and customizable with your favorite toppings.
Crowd-pleasing: Perfect for potlucks, game days, or busy weeknights.
Low-carb friendly: Enjoy all the flavor of pizza without the crust.
Ingredients to Make Pizza Casserole:
- diced tomatoes. Drain well to prevent excess liquid. Crushed tomatoes can also be used for a smoother sauce.
- ground sausage. Adds rich, savory flavor as the base of the casserole. You can use Italian sausage or turkey sausage for a leaner option.
- italian seasoning. A blend of herbs that gives classic pizza flavor, add extra oregano or basil if desired.
- mozzarella cheese. Melts perfectly and gives that signature cheesy pull, use freshly shredded for the best texture.
- pepperoni. Mini or regular slices both work. Try turkey pepperoni for a lighter version.
- mushrooms. Freshly sliced mushrooms add umami and moisture, sauté before baking if you prefer them softer.
- black olives. Add a briny, salty bite that balances the rich cheese.
- green pepper. Brings color and freshness, red or yellow peppers can be used for a sweeter flavor.

How to Make Pizza Casserole:
- Preheat oven to 375°F and lightly grease a baking dish.
- In a large skillet, cook the sausage with Italian seasoning over medium heat until browned. Drain any excess grease. Stir in the diced tomatoes and cook for 3-4 minutes.
- Transfer the mixture to the prepared baking dish. Top evenly with mozzarella cheese, pepperoni, mushrooms, black olives, and green pepper.
- Bake for 20-25 minutes, or until the cheese is melted and bubbly.
- Remove from oven and let cool slightly before serving.

Recipe Notes & Tips:
- Drain the tomatoes well: Excess liquid can make the casserole watery.
- Add extra toppings: Try onions, cooked bacon, or diced ham for more flavor variety.
- Cheese options: Mix in a little Parmesan or provolone for a richer, gooier bake.
- Make it low-carb: Replace the diced tomatoes with crushed tomatoes or skip any high-carb toppings.
- Vegetarian version: Omit the sausage and add more vegetables or meatless crumbles.
- Meal prep friendly: Assemble up to a day ahead, cover, and refrigerate. Bake when ready to serve.
- Leftover idea: Reheat and spoon over zucchini noodles or cauliflower rice for a quick lunch.
Serving Suggestions:
- Lobster Bisque
- Italian Chopped Salad
- Honey Garlic Carrots
- Almond Crusted Mushrooms
- Sourdough Flatbread

How to Store:
Refrigerator: Store leftovers in an airtight container for up to 4 days.
Freezer: Freeze baked casserole portions in freezer-safe containers for up to 2 months. Thaw overnight in the refrigerator before reheating.
Reheating: Warm in the oven at 350°F for 15-20 minutes, or microwave individual portions until hot.
FAQs:
Yes, ground beef, turkey, or chicken all work well. Just season with a little extra Italian seasoning for flavor.
Absolutely, stir in cooked penne or rotini before baking for a heartier dish.
Yes, assemble in your slow cooker and cook on low for 3-4 hours or high for 1½-2 hours until bubbly.

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Pizza Casserole
Ingredients
- 1 pound ground sausage
- 1 teaspoon italian seasoning
- 2 cans diced tomatoes, drained
- 1 cup mozzarella cheese
- ¼ cup pepperoni
- ½ cup mushrooms, sliced
- ¼ cup black olives, sliced
- ¼ cup green pepper, diced
Instructions
- Preheat oven to 375°F and lightly grease a baking dish.
- In a large skillet, cook the sausage with Italian seasoning over medium heat until browned. Drain any excess grease. Stir in the diced tomatoes and cook for 3-4 minutes.
- Transfer the mixture to the prepared baking dish. Top evenly with mozzarella cheese, pepperoni, mushrooms, black olives, and green pepper.
- Bake for 20-25 minutes, or until the cheese is melted and bubbly.
- Remove from oven and let cool slightly before serving.
Nutrition
Notes
- Drain the tomatoes well: Excess liquid can make the casserole watery.
- Add extra toppings: Try onions, cooked bacon, or diced ham for more flavor variety.
- Cheese options: Mix in a little Parmesan or provolone for a richer, gooier bake.
- Make it low-carb: Replace the diced tomatoes with crushed tomatoes or skip any high-carb toppings.
- Vegetarian version: Omit the sausage and add more vegetables or meatless crumbles.
- Meal prep friendly: Assemble up to a day ahead, cover, and refrigerate. Bake when ready to serve.
- Leftover idea: Reheat and spoon over zucchini noodles or cauliflower rice for a quick lunch.
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