Sloppy Joes
["1 lb. ground beef", "1 c. finely chopped onion", "1/2 c. finely chopped pepper", "1/2 c. finely chopped celery", "1 Tbsp. brown sugar", "1 Tbsp. mustard", "1 Tbsp. Worcestershire sauce", "1 Tbsp. vinegar", "1 tsp. salt", "1 c. catsup"]
["Brown beef; drain, if necessary.", "Add all other ingredients. Cover and simmer for 30 minutes."]
["ground beef", "onion", "pepper", "celery", "brown sugar", "mustard", "Worcestershire sauce", "vinegar", "salt", "catsup"]