Preheat oven to 350 degrees F. Boil chicken until done and tender; remove from broth; save broth. Cool and de-bone chicken. Cook spaghetti according to package directions in saved chicken broth. When spaghetti is done, give it a quick cool rinse. Reserve ½ cup of cheese for the topping. Place all ingredients in a deep roasting baking dish, mix well. Top with remaining cheese. Bake in 350 degree F. oven until cheese melts.