Easy Low Carb Pizza Casserole – A Cheesy, Crust-Free Favorite

Name: Easy Low Carb Pizza Casserole – A Cheesy, Crust-Free Favorite
Ingredients: 1½ lbs ground beef or Italian sausage; 1½ cups sugar-free marinara sauce; 2 cups shredded mozzarella cheese; ½ cup grated Parmesan (optional); ½ cup chopped pepperoni or sausage slices; ½ cup sliced mushrooms or olives (optional); 1 tsp garlic powder; 1 tsp onion powder; 1 tsp Italian seasoning; Salt & pepper to taste; Optional: 2 eggs (for firmer base)

Author: rodrigo Stone

Published: January 7, 2026

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This easy low carb pizza casserole delivers all the bold, melty flavors of your favorite slice — without the carbs from a traditional crust. It’s a simple, family-friendly, keto-style dish that layers seasoned ground meat, rich marinara sauce, gooey cheese, and classic pizza toppings in one delicious bake.

Perfect for anyone watching carbs or following a keto lifestyle, this crustless pizza casserole skips the dough and goes straight for the good stuff: hearty protein, savory sauce, and melty mozzarella. Even non-low-carb eaters will love this dish — it’s comfort food at its finest.

Whether you’re meal prepping, looking for a weeknight dinner, or craving a pizza fix without the guilt, this casserole hits the spot in every way.

Ingredients Overview

Ground Meat

Use 1 to 1½ lbs of:

Ground beef (80/20 or lean)
Italian sausage (adds spice and flavor)
Ground turkey or chicken (for a lighter option)

You can mix beef and sausage for a richer base. Be sure to drain excess grease after browning.

Marinara or Pizza Sauce

Choose a low-sugar marinara sauce — look for 4g net carbs or less per serving. A bold, garlicky sauce makes a big difference.

Optional: Add tomato paste or Italian seasoning for depth if your sauce is mild.

Mozzarella Cheese

Shredded mozzarella is the go-to — it melts beautifully and gives that pizza-style stretch.

You can also add:

Parmesan for extra savory depth
Provolone for a classic pizzeria flavor

Use part-skim or whole milk mozzarella depending on your texture preference.

Pizza Toppings

Endless options here — choose low-carb favorites like:

Pepperoni
Cooked crumbled bacon
Olives
Sautéed mushrooms
Green peppers
Banana peppers or jalapeños
Red onion slices
Cooked spinach

Avoid starchy veggies like corn or sweet sauces with added sugar.

Eggs (Optional)

Adding 2 beaten eggs to the meat layer can help bind the casserole if you want a firmer, more structured slice. This is especially helpful if not using any filler like veggies.

Seasonings

Use classic Italian flavors:

Garlic powder
Onion powder
Dried oregano
Dried basil
Crushed red pepper (optional for heat)
Salt and black pepper

A dash of fennel mimics sausage seasoning if using plain ground meat.

Step-by-Step Instructions

Preheat Oven
Set oven to 375°F (190°C). Lightly grease a 9×13-inch casserole dish.
Cook the Meat
In a large skillet, brown your ground meat over medium heat. Add garlic powder, onion powder, salt, pepper, and Italian seasoning. Drain off excess fat.
Layer the Base
Spread the cooked meat evenly into the bottom of your casserole dish. If using eggs, mix them into the slightly cooled meat mixture and spread evenly.

Add the Sauce
Pour marinara or pizza sauce evenly over the meat layer. Spread with a spatula to cover.
Top with Cheese
Sprinkle a generous layer of shredded mozzarella cheese over the sauce. You can add grated Parmesan or provolone for extra richness.
Add Toppings
Layer your favorite pizza toppings over the cheese — pepperoni, olives, veggies, etc.

Bake
Bake uncovered for 20–25 minutes, or until cheese is melted, bubbly, and golden brown on top. For an extra golden top, broil the last 2–3 minutes.
Cool and Serve
Let rest 5–10 minutes before slicing. This helps everything set and makes serving easier.

Tips, Variations & Substitutions

Add Vegetables: Sauté mushrooms, peppers, spinach, or zucchini before adding them to avoid excess moisture.

Make It Spicy: Add red pepper flakes or jalapeños. Use spicy Italian sausage for heat.
Extra Protein: Add chopped grilled chicken, bacon, or extra sausage on top.
Dairy-Free: Use dairy-free mozzarella alternatives — many melt well and are low-carb friendly.

Firmer Texture: Add 2 eggs to the meat mixture to create a quiche-like base that holds its shape.

Serving Ideas & Occasions

This low carb pizza casserole is great for:

Weeknight family dinners
Keto meal prep (stores and reheats beautifully)
Game day or potlucks
Pizza night without the carb crash

Pair it with:

A fresh Caesar salad
Roasted broccoli or green beans
Keto garlic bread or almond flour rolls

It’s cozy, cheesy, and totally satisfying — without the crust.

Nutritional & Health Notes

This dish is naturally:

Low-carb and keto-friendly
Gluten-free
High in protein and healthy fats

For best results:

Use sugar-free marinara
Choose nitrate-free pepperoni or sausage
Opt for grass-fed ground beef or pasture-raised meat for quality

Each serving typically contains:

~6–8g net carbs
~25–30g protein
~400–500 calories (depending on toppings)

Portion out with lots of low-carb veggies for a balanced, satisfying meal.

FAQs

Q1: Can I make this casserole ahead of time?
Yes! Assemble it fully, cover, and refrigerate for up to 24 hours. Add 5–10 minutes to the bake time if going straight from fridge to oven.

Q2: Can I freeze low carb pizza casserole?
Absolutely. Freeze before or after baking. Let cool completely, wrap tightly, and freeze for up to 2 months. Thaw overnight and reheat at 350°F.

Q3: How do I keep the casserole from being watery?
Sauté any added vegetables to release moisture before layering. Avoid using uncooked mushrooms or spinach raw.

Q4: Can I use ground turkey or chicken?
Yes. Ground turkey or chicken works well, but add extra seasoning or mix in some sausage for flavor.

Q5: Is there a crust version that’s still low carb?
You can make a base of cauliflower rice, egg, and cheese to create a low-carb crust if desired — bake it first before layering the rest.

Q6: What pizza toppings are keto-friendly?
Pepperoni, sausage, olives, mushrooms, spinach, onions, peppers, and bacon are all great low-carb options.

Q7: Can I make this dairy-free?
Yes, with dairy-free cheese alternatives. Use a cashew-based or almond milk cheese that melts well.