Easy Low Carb Keto Pizza Casserole (Printable)

Cheesy casserole with Italian sausage, veggies, and melted mozzarella captures pizza flavor without the crust.

# What You’ll Need:

→ Proteins

01 - 1 lb ground Italian sausage
02 - 20 slices pepperoni

→ Vegetables

03 - 1 cup sliced mushrooms
04 - 1/2 cup diced green bell pepper
05 - 1/2 cup diced onion
06 - 2 cloves garlic, minced

→ Sauce

07 - 1 cup sugar-free pizza sauce

→ Cheeses

08 - 2 cups shredded mozzarella cheese
09 - 1/2 cup shredded cheddar cheese
10 - 1/4 cup grated Parmesan cheese

→ Seasonings

11 - 1 tsp dried Italian herbs
12 - 1/2 tsp salt
13 - 1/2 tsp black pepper
14 - Red pepper flakes to taste

# How-to Steps:

01 - Preheat oven to 400°F.
02 - Cook ground Italian sausage in a large skillet over medium heat until browned. Drain excess fat.
03 - Add mushrooms, bell pepper, onion, and garlic to the skillet. Sauté for 3-4 minutes until softened.
04 - Stir in pizza sauce, Italian herbs, salt, and black pepper. Simmer for 2-3 minutes.
05 - Transfer mixture to a greased 9x9-inch baking dish.
06 - Sprinkle mozzarella and cheddar cheese evenly over top. Add Parmesan and arrange pepperoni slices.
07 - Bake uncovered for 20-25 minutes until cheese is melted and bubbly.
08 - Let rest for 5 minutes before serving. Garnish with extra herbs or red pepper flakes if desired.

# Expert Advice:

01 -
  • The cheese forms this incredible crust-like layer on top that fools your brain into thinking you are eating real pizza
  • You can prep everything in one skillet then just transfer it to bake meaning minimal cleanup
  • It reheats beautifully and actually tastes better the next day when flavors have had time to mingle
02 -
  • DRAIN the sausage fat before adding vegetables or you will end up with an oily mess that nobody wants to eat
  • The casserole will look jiggly when you first pull it out but that is just the hot cheese so give it those 5 minutes to firm up
03 -
  • Grate your own cheese from blocks instead of buying pre-shredded bags because the anti-caking coating prevents proper melting
  • Use a spicy Italian sausage if you want to skip the red pepper flakes entirely

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