# What You'll Need:
→ Proteins
01 - 10.5 oz lean ground beef
02 - 2 oz turkey or regular pepperoni, sliced
→ Pasta
03 - 12 oz high-protein pasta (penne or fusilli)
→ Cheese & Yogurt Sauce
04 - 1 cup plain Greek yogurt (0-2% fat)
05 - 1.5 cups part-skim mozzarella cheese, shredded
06 - 0.25 cup grated Parmesan cheese
07 - 1 large egg
→ Vegetables
08 - 1 small onion, finely chopped
09 - 2 cloves garlic, minced
10 - 14 oz canned crushed tomatoes
11 - 1 red bell pepper, diced (optional)
12 - 3.5 oz baby spinach, roughly chopped (optional)
→ Spices & Seasonings
13 - 1 teaspoon dried oregano
14 - 1 teaspoon dried basil
15 - 0.5 teaspoon chili flakes (optional)
16 - Salt and black pepper to taste
17 - Olive oil for sautéing
# How-To Steps:
01 - Preheat the oven to 400°F. Grease a large 9x13-inch baking dish with olive oil or cooking spray.
02 - Cook the pasta in a large pot of salted boiling water until just al dente according to package directions. Drain and set aside.
03 - Heat a drizzle of olive oil in a large skillet over medium heat. Add the chopped onion and bell pepper if using; sauté for 3-4 minutes until softened.
04 - Add the minced garlic to the skillet and cook for 1 minute, stirring frequently until fragrant.
05 - Add the lean ground beef and cook, breaking it apart with a spoon, until fully browned and cooked through. Drain excess fat if necessary.
06 - Stir in the crushed tomatoes, dried oregano, dried basil, chili flakes if using, and spinach if using. Simmer for 5 minutes. Season with salt and pepper to taste.
07 - In a mixing bowl, combine Greek yogurt, half of the mozzarella cheese, Parmesan cheese, and egg. Mix until smooth and well incorporated. Season lightly with salt and pepper.
08 - In a large bowl, combine the cooked pasta, beef-tomato mixture, and yogurt-cheese sauce. Mix thoroughly until evenly distributed.
09 - Transfer the pasta mixture to the prepared baking dish. Top with remaining mozzarella cheese and arrange pepperoni slices evenly over the surface.
10 - Bake for 20-25 minutes, or until the casserole is bubbly and the top is golden brown. Remove from the oven and let rest for 5 minutes before serving.