1. Cut tops off peppers and remove seeds. Place peppers in saucepan and cover with water. Boil for 3 minutes. Drain inverted on paper towel. Cook beef and onion over medium heat until beef is no longer pink; drain. Stir in cooked rice, salt, worchestershire, cheese, garlic powder and pepper. Spoon into peppers. Bake in ungreased shallow 2 qt baking dish. Drizzle with tomato sauce. Cover and bake at 350 degrees for 25-30 minutes.