Homemade Crustless Pizza Bake is an easy, cheesy, low-carb comfort-food casserole loaded with seasoned ground beef, Italian sausage or your favorite pizza toppings, marinara sauce, mozzarella, Parmesan, and colorful vegetables.

It gives you all the best parts of pizza—savory meat, tangy tomato sauce, gooey cheese, and classic Italian seasoning—without making or using a crust.

Recipe at a Glance

Ingredients

For the Pizza Bake

• 1 lb (450 g) lean ground beef
• ½ lb (225 g) Italian sausage, mild or spicy
• 1 small onion, diced
• 3 garlic cloves, minced
• 1 small bell pepper, diced
• 1 cup sliced mushrooms
• 1½ cups low-sugar marinara or pizza sauce
• 2 cups shredded mozzarella cheese
• ½ cup freshly grated Parmesan cheese
• ½ cup sliced pepperoni
• 1 teaspoon Italian seasoning
• ½ teaspoon dried oregano
• ½ teaspoon garlic powder
• ¼ teaspoon red pepper flakes, optional
• ½ teaspoon black pepper
• Salt, to taste
• 1 tablespoon olive oil, if needed

Optional Toppings

Add any of your favorite pizza toppings:

• Black olives
• Jalapeños
• Banana peppers
• Spinach
• Cherry tomatoes
• Green peppers
• Turkey pepperoni
• Cooked bacon
• Diced ham
• Chicken
• Extra mushrooms

Step-by-Step Instructions

1. Preheat the Oven

Preheat your oven to:

400°F (200°C)

Lightly grease a 9 × 13-inch baking dish or similar casserole dish.

2. Brown the Meat

Heat a large skillet over medium-high heat.

Add the ground beef and Italian sausage.

Cook for approximately 7–9 minutes, breaking the meat apart with a wooden spoon.

Cook until browned and no longer pink.

Drain excess grease if necessary.

3. Add the Onion and Bell Pepper

Add the diced onion and bell pepper.

Cook for approximately 3–4 minutes, until they begin to soften.

4. Add the Mushrooms

Stir in the sliced mushrooms.

Cook for another 3–4 minutes, allowing the mushrooms to release most of their moisture.

This is important because excess moisture can make the finished casserole watery.

5. Add the Garlic

Add the minced garlic.

Cook for approximately 30–60 seconds until fragrant.

Don’t let it burn.

6. Season the Meat Mixture

Add:

• Italian seasoning
• Oregano
• Garlic powder
• Black pepper
• Red pepper flakes, if using

Taste before adding salt because sausage, pepperoni, Parmesan, and sauce can already contain plenty of salt.

Stir well.

7. Add the Pizza Sauce

Pour the marinara or pizza sauce into the skillet.

Stir until everything is evenly coated.

Simmer for approximately 2–3 minutes.

This allows the flavors to blend.

8. Add the Pepperoni

Stir in approximately half of the pepperoni.

Reserve the rest for the top.

9. Transfer to the Baking Dish

Pour the meat and sauce mixture into the prepared baking dish.

Spread it evenly.

10. Add the Cheese

Sprinkle approximately:

• 1½ cups mozzarella
• ½ cup Parmesan

over the top.

Arrange the remaining pepperoni over the cheese.

Add any additional toppings you want.

11. Bake

Place the casserole in the preheated oven.

Bake uncovered for approximately:

15–20 minutes

until the cheese is completely melted and bubbling.

12. Brown the Top

For a beautifully golden cheese crust, switch the oven to broil.

Broil for approximately:

1–2 minutes

Watch carefully because cheese can burn quickly under the broiler.

13. Rest

Remove the casserole from the oven.

Let it rest for approximately:

5–10 minutes

This allows the sauce to settle and makes serving easier.

14. Garnish and Serve

Finish with:

• Fresh parsley
• Fresh basil
• Parmesan
• Crushed red pepper
• Freshly cracked black pepper

Serve hot.

What Does Crustless Pizza Bake Taste Like?

It tastes like the best parts of a loaded pizza without the crust.

You’ll get:

• Savory seasoned beef
• Italian sausage
• Tangy tomato sauce
• Gooey mozzarella
• Nutty Parmesan
• Pepperoni
• Garlic
• Italian herbs
• Sweet peppers and onions

The cheese becomes golden and bubbly while the meat mixture stays juicy and flavorful.

The Secret to Perfect Crustless Pizza Bake

1. Drain excess grease

Too much grease can make the casserole heavy.

2. Cook vegetables properly

Mushrooms and vegetables release water, so cook them until most moisture evaporates.

3. Use a thick sauce

A thick pizza or marinara sauce helps prevent a watery casserole.

4. Use flavorful cheese

Freshly shredded mozzarella melts beautifully.

5. Don’t overbake

Once the cheese is melted and bubbling, it’s ready.

6. Let it rest

A short resting period makes it much easier to serve.

Low-Carb Crustless Pizza Bake

This recipe is naturally low in carbohydrates compared with traditional pizza.

For an even lower-carb version:

• Choose a no-sugar-added pizza sauce.
• Use lean ground beef.
• Add more mushrooms.
• Add spinach.
• Reduce onions.
• Avoid sweetened sauces.
• Use pepperoni without added sugar when available.

Serve with a green salad or roasted vegetables.

High-Protein Crustless Pizza Bake

Increase protein by using:

• 1½ lb lean ground beef
• Chicken breast
• Turkey
• Lean Italian chicken sausage
• Extra mozzarella
• Cottage cheese

You can also stir 1 cup cottage cheese into the meat mixture before baking.

For a smoother texture, blend the cottage cheese first.

Cottage Cheese Pizza Bake

For a high-protein creamy version:

Mix:

• 1 cup cottage cheese
• 1 egg
• ½ cup Parmesan
• ½ teaspoon Italian seasoning

Spread this mixture over the meat layer before adding mozzarella.

Bake as directed.

Chicken Crustless Pizza Bake

Replace the ground beef and sausage with:

3 cups cooked diced chicken

Add:

• Mushrooms
• Bell peppers
• Spinach
• Pepperoni, optional
• Mozzarella
• Pizza sauce

This makes a leaner, high-protein version.

Turkey Crustless Pizza Bake

Replace the beef with:

1½ lb lean ground turkey

Because turkey is leaner, add a little olive oil if necessary while cooking.

Season generously with Italian herbs and garlic.

Vegetarian Crustless Pizza Bake

Skip the meat and use:

• Mushrooms
• Bell peppers
• Zucchini
• Spinach
• Broccoli
• Olives
• Tomatoes

Add extra mozzarella or cottage cheese for protein.

Supreme Pizza Bake

Create a supreme-style casserole using:

• Ground beef
• Italian sausage
• Pepperoni
• Mushrooms
• Bell peppers
• Onions
• Black olives

Top generously with mozzarella.

Meat Lovers Pizza Bake

Use:

• Ground beef
• Italian sausage
• Pepperoni
• Cooked bacon
• Ham

Because these meats can be salty, taste the sauce before adding additional salt.

Buffalo Chicken Pizza Bake

Use cooked shredded chicken instead of beef.

Combine the chicken with:

¼ cup buffalo sauce

Add mozzarella and a small amount of blue cheese.

Bake until bubbling.

BBQ Chicken Pizza Bake

Use:

• Shredded chicken
• BBQ sauce
• Red onion
• Mozzarella
• Cheddar

Add fresh cilantro after baking.

Hawaiian-Style Pizza Bake

Add:

• Diced ham
• Small amount of pineapple
• Mozzarella

If you’re following a low-sugar or low-carb diet, reduce or omit the pineapple.

Jalapeño Popper Pizza Bake

Add:

• Diced jalapeños
• Cream cheese
• Mozzarella
• Cheddar
• Cooked chicken or bacon

This creates a creamy, spicy variation.

White Pizza Crustless Bake

Skip the tomato sauce.

Use:

• Cream cheese
• Heavy cream
• Garlic
• Parmesan
• Mozzarella
• Chicken
• Spinach
• Mushrooms

Create a creamy white sauce and layer it with the toppings.

Mushroom Garlic Pizza Bake

For mushroom lovers, use:

2 cups mushrooms

Sauté them with garlic until deeply browned before adding them to the casserole.

Extra-Cheesy Version

Use:

• 2 cups mozzarella
• ½ cup Parmesan
• ½ cup provolone
• ½ cup cheddar

The combination creates an especially rich cheese topping.

Make-Ahead Instructions

You can assemble the casserole up to 24 hours ahead.

Prepare the meat and vegetable mixture.

Transfer to the baking dish.

Add the sauce and cheese.

Cover tightly and refrigerate.

When ready to bake, remove from the refrigerator and allow it to sit at room temperature for approximately 15–20 minutes.

Bake until hot and bubbling.

Storage

Store leftovers in an airtight container in the refrigerator.

Use within approximately:

3–4 days

Freezing Instructions

Crustless pizza bake freezes very well.

Before Baking

Assemble the casserole but don’t bake it.

Cover tightly with plastic wrap followed by foil.

Freeze for up to approximately 2–3 months.

After Baking

Cool completely.

Divide into individual portions and freeze in airtight containers.

Reheating

Oven

Cover with foil.

Bake at:

350°F (175°C)

until heated through.

Remove the foil during the final few minutes to refresh the cheese.

Microwave

Heat individual portions in 60–90 second intervals.

Let stand for a minute before serving.

Approximate Nutrition

For 1 of 6 servings:

• Calories: approximately 500–560
• Protein: approximately 36–42 g
• Carbohydrates: approximately 10–14 g
• Fat: approximately 32–37 g
• Fiber: approximately 2–3 g
• Sugar: approximately 5–7 g

Nutrition will vary depending on the sausage, pepperoni, cheese, and sauce used.

WW-Friendly Tips

For a lighter, WW-friendlier version:

• Use 93–96% lean ground beef or lean ground turkey.
• Use turkey pepperoni.
• Use reduced-fat mozzarella.
• Use part-skim cheese.
• Increase mushrooms, peppers, and spinach.
• Use a lower-calorie pizza sauce.
• Reduce the amount of sausage.
• Serve with a large green salad.

WW Points depend on your specific plan and ingredients, so calculate using the exact products you use.

Gluten-Free Version

The basic recipe can easily be gluten-free.

Use:

• Gluten-free pizza sauce
• Gluten-free sausage
• Gluten-free pepperoni

Always check package labels because processed meats and sauces can vary.

Dairy-Free Version

Use:

• Dairy-free mozzarella
• Dairy-free Parmesan alternative
• Dairy-free cheddar alternative

The texture will vary depending on the cheese substitute.

Keto-Friendly Version

For a keto-style version:

• Use no-sugar-added pizza sauce.
• Use full-fat cheese.
• Use low-carb vegetables.
• Avoid sweetened meats and sauces.
• Skip pineapple.

The exact carbohydrate count depends on the ingredients.

Frequently Asked Questions

1. Can I make this without ground beef?

Yes.

Use chicken, turkey, sausage, or a combination.

2. Can I use only ground beef?

Absolutely.

Simply use approximately 1½ lb ground beef.

3. Can I use ground turkey?

Yes.

Lean ground turkey works very well.

4. Can I use rotisserie chicken?

Yes.

Use approximately 3 cups shredded chicken.

5. Can I use jarred marinara?

Yes.

Choose a thick, flavorful marinara.

6. Can I use pizza sauce?

Absolutely.

Pizza sauce works particularly well because it is already seasoned.

7. Can I add vegetables?

Yes.

Mushrooms, peppers, onions, spinach, zucchini, and olives are excellent choices.

8. Why is my pizza bake watery?

The most common reasons are:

• Wet vegetables
• Too much sauce
• Excess grease
• Watery cheese

Cook mushrooms and vegetables thoroughly and drain excess meat grease.

9. Can I use frozen vegetables?

Yes, but thaw and drain them very well first.

10. Can I use fresh mozzarella?

Yes.

Drain it thoroughly and pat it dry before using because fresh mozzarella contains more moisture.

11. Can I use cheddar?

Yes.

Cheddar adds a sharper flavor and melts well with mozzarella.

12. Can I add cream cheese?

Yes.

Cream cheese makes the casserole richer and creamier.

13. Can I make it spicy?

Yes.

Add:

• Jalapeños
• Cayenne
• Red pepper flakes
• Hot Italian sausage
• Spicy pepperoni

14. Can I make it ahead?

Yes.

Assemble it up to 24 hours ahead and refrigerate.

15. Can I freeze it?

Yes.

Freeze for approximately 2–3 months.

16. Can I make individual portions?

Yes.

Divide the mixture among oven-safe ramekins and bake until hot and bubbly.

17. Can I make this in a slow cooker?

Yes, although the oven produces a better browned cheese topping.

Cook the meat mixture first, then layer everything in the slow cooker and cook on LOW until hot and melted.

18. Can I make it in an air fryer?

Yes, for individual portions.

Use an air-fryer-safe baking dish and cook at approximately 350°F (175°C) until bubbling and golden.

19. Can I make it keto?

Yes.

Use low-carb vegetables and no-sugar-added pizza sauce.

20. Can I make it high-protein?

Yes.

Increase chicken or lean beef and use high-protein cheese or cottage cheese.

21. Do I need to cover the casserole?

No.

Bake it uncovered so the cheese can become golden and bubbly.

22. Why is my cheese browning too quickly?

Cover loosely with foil and continue baking until the center is hot.

23. Why does my casserole fall apart?

Let it rest for 5–10 minutes before serving.

24. Can I use different cheeses?

Absolutely.

Try:

• Mozzarella
• Provolone
• Parmesan
• Cheddar
• Monterey Jack
• Fontina

25. Can I make it vegetarian?

Yes.

Replace the meat with extra mushrooms, zucchini, peppers, spinach, broccoli, and other vegetables.

Troubleshooting Guide

Chef’s Tips

Tip 1: Brown the meat well

Don’t just cook it until no longer pink. A little browning creates much better flavor.

Tip 2: Cook mushrooms separately if using many

They release a lot of water.

Tip 3: Use thick sauce

Thin sauce can make the bake watery.

Tip 4: Layer the pepperoni

Some inside the casserole and some on top gives you flavor throughout.

Tip 5: Don’t overload with toppings

Too many wet toppings can prevent the cheese from browning properly.

Tip 6: Use freshly shredded cheese

It usually melts more smoothly than pre-shredded cheese.

Tip 7: Broil carefully

One or two minutes can transform the top, but it can also burn quickly.

Best Serving Ideas

Serve Homemade Crustless Pizza Bake with:

• Caesar salad
• Garden salad
• Garlic broccoli
• Roasted zucchini
• Green beans
• Sautéed spinach
• Garlic mushrooms
• Roasted cauliflower

Perfect Low-Carb Dinner

Crustless Pizza Bake + Fresh Green Salad + Roasted Broccoli

The crisp vegetables provide a refreshing contrast to the rich, cheesy casserole.

Meal-Prep Idea

Divide the finished bake into 6 individual containers.

Store in the refrigerator.

When you’re ready for lunch, reheat one portion and serve with:

• Mixed greens
• Cucumber
• Cherry tomatoes
• A light vinaigrette

This makes a convenient high-protein, low-carb meal.

Presentation Ideas

For a beautiful finished dish:

1. Let the casserole rest for 5–10 minutes.
2. Sprinkle with fresh parsley.
3. Add a little Parmesan.
4. Add fresh basil leaves.
5. Finish with red pepper flakes if desired.

For individual servings, use a wide spatula to scoop through the melted cheese and meat layers.

Final Result

You get a hot, bubbling, cheesy pizza-inspired casserole packed with seasoned beef, Italian sausage, pepperoni, mushrooms, peppers, garlic, tomato sauce, mozzarella, and Parmesan—without any crust. It’s hearty, customizable, naturally low in carbohydrates compared with traditional pizza, and perfect for an easy family dinner or meal prep.