Description

If you love the bold flavors of a loaded supreme pizza but want to keep things low-carb and protein-packed, this Low-Carb Supreme Pizza Casserole is the perfect solution. Layers of seasoned ground beef, savory pizza sauce, melted mozzarella, and colorful vegetables create a rich, cheesy casserole that’s hearty, satisfying, and family-friendly. Every bite delivers classic pizza flavor without the traditional crust, making it ideal for anyone following a high-protein or low-carb lifestyle.

Can This Low-Carb Supreme Pizza Casserole Support Weight Loss Goals?

Yes. This casserole can fit well into a weight-loss-friendly eating plan because it’s naturally high in protein while keeping carbohydrates low. The protein from ground beef and mozzarella helps promote fullness, which may reduce unnecessary snacking between meals. Replacing pizza crust with protein-rich ingredients lowers overall carbohydrate intake while still providing the comforting flavors of traditional pizza. Portion control and pairing it with a fresh salad make it an even more balanced meal.

Does Low-Carb Supreme Pizza Casserole Fit a High-Protein Lifestyle?

Absolutely. This casserole is built around protein-rich ingredients like lean ground beef and mozzarella cheese, making it an excellent choice for a high-protein diet. With approximately 6–8g net carbs per serving, it stays comfortably low in carbohydrates while offering satisfying pizza flavors. Bell peppers, mushrooms, olives, and pizza seasoning add nutrients and texture without significantly increasing carbs. It’s ideal for keto-inspired meal plans, muscle maintenance, and meal prep.

Why This Recipe is Special

🍕 Delivers classic supreme pizza flavor without the carb-heavy crust.
🧀 Rich in protein from beef and mozzarella for lasting satisfaction.
⏱️ Ready in under an hour with minimal preparation.
🥘 Perfect for meal prep since leftovers reheat beautifully.
🥗 Naturally keto-friendly and easy to customize with favorite toppings.

My Personal Experience

The cheese creates the perfect pizza texture.
Once baked, the mozzarella develops a beautifully golden top while staying wonderfully gooey underneath.
It tastes even better the next day.
The pizza seasoning and sauce blend together overnight, creating deeper, richer flavors.
The vegetables stay pleasantly tender.
Peppers and mushrooms add freshness without becoming overly soft or watery.
It’s one of the easiest meal-prep casseroles.
One baking dish provides several satisfying lunches or dinners throughout the week.
Even pizza lovers enjoy it.
It captures the familiar taste of supreme pizza while keeping carbs surprisingly low.

Perfect For

This casserole is perfect for busy weeknight dinners, weekly meal prep, family gatherings, keto meal plans, low-carb lunches, post-workout meals, potlucks, comfort food cravings, and make-ahead freezer meals. It also works wonderfully whenever you want pizza flavors without the traditional crust.

Why You’ll Love This Recipe

Loaded with authentic pizza flavors.
Every bite combines seasoned beef, gooey cheese, vegetables, and savory pizza sauce.
High in protein and filling.
The generous protein content helps keep you satisfied for hours.
Easy to customize.
Swap vegetables, use turkey instead of beef, or add your favorite low-carb toppings.
Minimal cleanup required.
Everything comes together in one casserole dish for simple cooking and easy washing.
Excellent for leftovers.
The flavors continue to develop, making each reheated serving even more delicious.

Common Mistakes to Avoid

Do not skip draining the cooked beef, or the casserole may become greasy.
Avoid adding too much pizza sauce, which can make the casserole watery.
Overcrowding with vegetables may release excess moisture during baking.
Baking too long can cause the cheese to become dry instead of gooey.

Required Equipment

Large skillet — Browns the beef evenly while developing rich flavor.
9×13-inch casserole dish — Holds all ingredients for even baking.
Wooden spoon — Easily breaks up ground beef while cooking.
Chef’s knife — Makes chopping vegetables quick and uniform.
Cutting board — Provides a safe prep surface.
Measuring cups — Ensures consistent ingredient proportions.
Oven — Melts the cheese perfectly while baking everything together.

Storage Instructions

Refrigerator:
Store cooled leftovers in an airtight glass or BPA-free container for up to 4 days.

Freezer:
Freeze individual portions in freezer-safe containers or wrap tightly for up to 3 months.

Reheating:
Microwave for 1–2 minutes or bake at 350°F (175°C) for 15–20 minutes until heated through. Avoid overheating to keep the cheese tender and maintain the casserole’s high-protein texture.

Recipe Details

Preparation Time: 15 minutes

Cooking Time: 35 minutes

Total Time: 50 minutes

Servings: 8

Best Season: All-season

Total Calories (Per Serving): Approximately 390 calories.

Short Description

This Low-Carb Supreme Pizza Casserole combines seasoned beef, melty mozzarella, colorful vegetables, and rich pizza flavors in one comforting dish. It’s satisfying, protein-packed, and perfect for busy weeknights. Enjoy everything you love about supreme pizza while keeping carbs low.

📝 Ingredients

2 lbs (900g) lean ground beef
2 cups shredded mozzarella cheese
1 cup pizza sauce (low-sugar)
1 cup sliced mushrooms
1 green bell pepper, diced
½ red bell pepper, diced
½ cup sliced black olives
1 teaspoon Italian seasoning
1 teaspoon garlic powder
½ teaspoon onion powder
½ teaspoon crushed red pepper flakes (optional)
Salt and black pepper to taste
Cooking spray or 1 tablespoon olive oil

Note: Choose a low-sugar pizza sauce to keep carbohydrates lower.

Directions

Preheat oven to 375°F (190°C).
- Lightly grease a 9×13-inch casserole dish.
Heat a large skillet over medium-high heat.
- Brown the ground beef for 8–10 minutes until fully cooked.
- Break it into small crumbles for even texture.
- Drain excess fat.
Add garlic powder, onion powder, Italian seasoning, salt, and pepper.
- Cook 1 minute until fragrant.
Stir in pizza sauce.
- Simmer over medium heat for 3 minutes until slightly thickened.
Spread the beef mixture evenly into the casserole dish.
Top with mushrooms, green pepper, red pepper, and black olives.
- Distribute vegetables evenly.
Sprinkle mozzarella cheese over the top.
- Cover every corner for even melting.
Bake for 20–25 minutes at 375°F (190°C).
- Bake until the cheese is bubbly and lightly golden.
Broil on High for 2–3 minutes (optional).
- Watch carefully until golden brown.
Let rest for 5–10 minutes before serving.
- This helps the casserole slice neatly.

High-Protein Cooking Tip:
Use lean ground beef (90/10 or leaner) and freshly shredded mozzarella for the best protein-to-fat balance and smoother melting.

Nutrition Facts (Per Serving – Approximate)

Calories: 390
Fats: 25g
Cholesterol: 90mg
Sodium: 720mg
Potassium: 540mg
Total Carbohydrates: 9g
Fiber: 2g
Net Carbs: 7g
Sugars: 4g
Protein: 33g
Calcium: 320mg

Notes

Refrigerate leftovers within two hours of cooking.
Freeze individual portions for convenient meal prep.
Reheat gently to keep the cheese creamy instead of rubbery.
Use turkey, chicken, or Italian sausage as protein alternatives.
Add sliced pepperoni, jalapeños, or extra herbs for additional pizza flavor.
Contains dairy; use dairy-free cheese if needed.

Frequently Asked Questions

1. Can I make this casserole ahead of time?
Yes, assemble it up to one day ahead and refrigerate until ready to bake.

2. Can I use ground turkey instead of beef?
Yes, ground turkey is an excellent lean, high-protein substitute.

3. Is this recipe keto-friendly?
Yes, when made with low-sugar pizza sauce, it fits well into most keto meal plans.

4. Can I freeze the casserole after baking?
Yes, cool completely before freezing in airtight containers for up to 3 months.

5. What vegetables work well in this recipe?
Mushrooms, bell peppers, olives, onions, spinach, and zucchini are all excellent low-carb choices.

6. How do I prevent the casserole from becoming watery?
Drain the cooked beef well and avoid adding vegetables with excess moisture without patting them dry first.

Low-Carb Supreme Pizza Casserole