Meet Johnny Marzetti the Midwestern Pasta Casserole You Want for Dinner

Name: Johnny Marzetti Casserole
Ingredients: 12 ounces mushrooms , cleaned and chopped or sliced; 1 tablespoon olive oil or neutral cooking oil; 1 large onion , chopped; 5 cloves garlic , minced; 1 bell pepper (any color), seeded and cored, finely chopped; Salt , to taste; 1 1/2 pounds lean ground beef (90:10 is good); 1 ( 28 - ounce ) can whole plum tomatoes in juice; 3 tablespoons tomato paste; 3/4 teaspoon dried oregano; 1/4 teaspoon crushed red pepper flakes; Freshly ground black pepper; 12 ounces (2 3/4 cups) uncooked elbow macaroni; 8 ounces grated cheddar cheese (2 generous cups), divided; 4 ounces grated Parmesan cheese (1 1/2 cups), divided