Sloppy Joes
["1 lb. hamburger", "1 medium onion", "1 c. celery", "1 tsp. mustard", "1 c. catsup", "1 egg"]
["Brown the hamburger, onion and celery until tender.", "Mix mustard,", "catsup and well-beaten egg.", "Add to hamburger mixture and simmer."]
["hamburger", "onion", "celery", "mustard", "catsup", "egg"]