In a large bowl beat egg, stir in 1/3 cup of soup. Bread crumbs, salt and pepper. Add beef, gently mix. Shape into six oval patties. Brown in a skillet over medium heat for 3-4 minutes on each side. Remove and set aside, discard drippings. In the skillet, combine flour and water until smooth. Add the ketchup, worchestersire sauce, mustard and remaining soup, bring to a boil. Cook and stir for two minutes. Return patties to skillet. Cover and simmer for 10 to 15 minutes or until meat is no longer pink. Serve patties and gravy over noodles.