Slice 8 pieces of mozzarella cheese and put two on each chicken breast. Pour 1 jar of your favorite spaghetti sauce over all. Sprinkle with Parmesan cheese and a little more mozzarella and bake at 350° for about 25 to 30 minutes, or until bubbly. Serve with spaghetti, garlic bread and a nice green salad.
Source: About.com Southern Food