Keto Pepperoni Pizza Casserole – Cheesy, Low-Carb & Family-Friendly

If you’re craving pizza but want to stay keto, this keto pepperoni pizza casserole is your dream come true. It’s cheesy, comforting, and loaded with your favorite pizza flavors — all without the carbs from crust.

This easy, oven-baked dish combines ground beef, Italian seasoning, melted cheese, and pepperoni slices in one deliciously gooey, low-carb meal. It’s perfect for weeknight dinners, meal prep, or anytime you want to indulge in pizza flavors guilt-free.

You’ll love how quickly this casserole comes together — no dough, no complicated prep, just pure comfort food that’s keto-friendly and crowd-approved.

Why I Love This Recipe

I love this keto pepperoni pizza casserole because it has everything great about pizza — melty cheese, savory sauce, and crispy pepperoni — without the carbs or guilt. It’s a one-dish dinner that satisfies pizza cravings while keeping you full and energized.

The base layer of seasoned ground beef or sausage gives it a hearty texture, while the gooey mozzarella and tangy tomato sauce make it taste just like traditional pizza. Plus, it’s easy to customize — add mushrooms, olives, peppers, or even spinach to make it your own.

This recipe fits perfectly into a keto or low-carb lifestyle and even wins over non-keto eaters. It’s cheesy, comforting, and quick to make — exactly what you want from an easy weeknight meal.

Key Ingredients

You’ll only need a handful of simple, keto-friendly ingredients for this keto pepperoni pizza casserole:

• Ground Beef or Italian Sausage: The hearty base of your casserole. Choose 80/20 beef or mild Italian sausage for rich flavor.
• Low-Carb Marinara Sauce: Use sugar-free marinara or pizza sauce to keep carbs low.
• Mozzarella Cheese: Melted mozzarella creates that classic pizza pull and creamy texture.
• Pepperoni: The signature topping that adds smoky, spicy flavor.
• Cream Cheese: Helps create a creamy, flavorful layer beneath the sauce.
• Parmesan Cheese: Adds sharp, salty flavor that deepens the richness.
• Italian Seasoning: A blend of oregano, basil, and thyme for that authentic pizza taste.
• Garlic Powder & Onion Powder: Simple seasonings that boost flavor.
• Optional Toppings: Bell peppers, mushrooms, olives, or cooked bacon for extra variety.

Step-by-Step

Follow these easy steps to make your keto pepperoni pizza casserole perfectly every time.

1. Preheat the Oven:
Set your oven to 375°F (190°C) and lightly grease a 9×13-inch baking dish.

2. Cook the Meat:
In a large skillet, cook the ground beef or sausage over medium heat until browned. Drain excess fat and stir in Italian seasoning, garlic powder, onion powder, and salt to taste.

3. Add the Sauce:
Stir in the sugar-free marinara sauce and mix until the meat is fully coated. Simmer for 2–3 minutes to let the flavors blend.

4. Assemble the Casserole:
Spread the meat mixture evenly into the prepared baking dish. Dollop the cream cheese on top and spread gently. Sprinkle half the mozzarella and all the Parmesan cheese over the top.

5. Add Pepperoni and Bake:
Layer pepperoni slices over the cheese and bake for 20–25 minutes, or until bubbly and golden.

6. Cool and Serve:
Let the casserole cool for 5 minutes before slicing. Serve hot with a sprinkle of oregano or crushed red pepper flakes for a little kick.

You Must Try These Variations

Once you try this keto pepperoni pizza casserole, you’ll want to make it again and again. Here are some variations to keep it fresh and fun:

• Supreme Pizza Casserole: Add sautéed mushrooms, bell peppers, and black olives.
• Buffalo Chicken Casserole: Swap the beef for shredded chicken and drizzle with buffalo sauce.
• Vegetarian Keto Pizza Casserole: Use zucchini, mushrooms, and spinach as your base instead of meat.
• BBQ Bacon Casserole: Use sugar-free BBQ sauce and add cooked bacon pieces for a smoky twist.
• White Pizza Version: Replace marinara with a white garlic sauce for a creamy, cheesy alternative.

Pro Tips

1. Use Sugar-Free Sauce: Check labels — many marinara sauces contain hidden sugars.
2. Drain the Meat Well: Too much grease will make the casserole watery.
3. Add Cheese in Layers: Layering creates that classic cheesy pull in every bite.
4. Customize It: Add your favorite keto toppings — jalapeños, mushrooms, or even spinach.
5. Reheat Easily: Store leftovers in the fridge for up to 4 days and reheat in the oven or microwave.

Nutritional Value

This keto pepperoni pizza casserole is loaded with flavor and nutrition — low in carbs, high in protein, and full of satisfying fats.

Nutrient	Amount (per serving)
Calories	340
Fat	25g
Protein	26g
Net Carbs	5g
Fiber	1g

How to Serve

This keto pepperoni pizza casserole is hearty enough to serve as a main dish on its own, but it pairs beautifully with:

• A fresh Caesar salad or green salad.
• Garlic butter zucchini noodles or spaghetti squash.
• Keto breadsticks or chaffles for scooping up the sauce.
• A side of roasted vegetables for added fiber.

Storage and Reheating

Store leftovers in an airtight container in the refrigerator for up to 4 days. To reheat, warm in the oven at 350°F for 10 minutes or microwave individual portions for about 1 minute.

You can also freeze the casserole for up to 2 months. Thaw overnight in the fridge and reheat before serving.

Conclusion

This keto pepperoni pizza casserole gives you all the flavors of classic pizza — melted cheese, zesty sauce, and crispy pepperoni — without any of the carbs. It’s easy to make, endlessly customizable, and guaranteed to satisfy even the biggest pizza lovers.

Whether you’re new to keto or just looking for a delicious low-carb dinner, this casserole is a hit every time. Cheesy, hearty, and full of flavor — this recipe proves you don’t need crust to enjoy pizza night.

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