Cook pasta according to package directions. Drain and set aside.Advertisement
Meanwhile, in a large skillet cook ground beef, onion, and sweet pepper (if using) until meat is brown. Drain off fat. Stir undrained stewed tomatoes, tomato sauce, salt, and black pepper into meat mixture in skillet. Bring to boiling; reduce heat. Simmer, covered, for 10 minutes. Stir in cooked pasta, oregano, basil, and olives (if using).
Preheat oven to 350°F. Spoon the pasta mixture into four or six 10- to 14-ounce individual casseroles.* Place casseroles on a large baking sheet. Bake, covered, about 20 minutes or until heated through. Uncover and sprinkle with cheese. Bake, uncovered, for 3 to 4 minutes more or until cheese is melted.