Step 1

Preheat oven to 350ºF. Spray an 8” X 8” baking pan with nonstick spray.

Step 2

Halve bell peppers. Remove and discard seeds and stems. Place pepper halves in the pan, cut side up.

Step 3

Bake until soft, 25–30 minutes.

Step 4

Meanwhile, bring a skillet sprayed with nonstick spray to medium-high heat. Add beef, mushrooms, onion, garlic powder, Italian seasoning, salt, and black pepper. Cook, stir, and crumble until beef is fully cooked and veggies have softened, 5–7 minutes.

Step 5

Remove skillet from heat. Add marinara sauce, cream cheese, and 1/4 cup mozzarella. Mix thoroughly.

Step 6

Blot away excess moisture from bell pepper halves. Fill with beef mixture, and top with remaining 1/4 cup mozzarella, followed by chopped pepperoni.

Step 7

Bake until cheese has melted, 5–7 minutes.