Baked Mostaccioli

Name: Baked Mostaccioli
Prep time: 10 min
Cook time: 50 min
Total time: 1 h
Yield: 8
Ingredients: Ingredients; 1 lb mostaccioli pasta (or penne if unavailable); 1 lb ground beef (80/20); 1 medium onion, diced; 3 cloves garlic, minced; 1 green bell pepper, diced; 24 oz marinara sauce; 8 oz tomato sauce; 2 tablespoons tomato paste; 1 teaspoon dried oregano; 1 teaspoon dried basil; 1/2 teaspoon dried thyme; 1/2 teaspoon salt; 1/4 teaspoon black pepper; 1/4 teaspoon red pepper flakes (optional); 15 oz ricotta cheese; 1 large egg; 3 cups shredded mozzarella cheese, divided; 1/2 cup grated Parmesan cheese; 2 tablespoons fresh parsley, chopped