3 boneless chicken breasts, cooked & cut up
1/2 lg. onion, chopped

Brown onion in butter and add 1 can cream of chicken soup and 1/2 cup milk. Bring to boil, stirring so it doesn't burn. Add 1/2 cup sharp cheddar cheese, cut up. Cook 8 ounces spaghetti; drain and rinse. Add spaghetti to sauce, add cut up chicken, salt and pepper. Put in baking dish. Sprinkle with bread crumbs. Bake 25 minutes at 325 degrees.