Sloppy Joes
["2 lb. ground beef, browned and drained", "1 medium chopped onion", "1 1/2 c. chopped celery", "salt and pepper to taste", "1 medium bottle catsup", "1/2 c. vinegar", "1/2 c. brown sugar", "1 Tbsp. mustard"]
["Mix with meat, onion and celery.", "Bake at 300\u00b0 for 2 hours. Will be thick."]
["ground beef", "onion", "celery", "salt", "catsup", "vinegar", "brown sugar", "mustard"]