Supper In A Skillet
["1 1/2 lb. ground beef", "1 1/2 c. coarsely chopped onion", "1 1/2 c. ketchup", "2 tsp. salt", "1 Tbsp. Worcestershire sauce", "1/2 tsp. dry mustard", "1/4 lb. elbow macaroni", "1 1/2 c. shredded Parmesan cheese", "1 Tbsp. cooking oil", "1 1/2 c. coarsely chopped celery", "1 c. water", "1/8 tsp. pepper", "1 tsp. oregano"]
["Cook beef in oil until gray in color.", "Add onion and celery; cook until onion is soft.", "Add ketchup, water, Worcestershire sauce, salt, pepper, mustard and oregano; mix well.", "Stir in cooked macaroni.", "Cover; simmer to cook meat and blend flavors, about 20 to 25 minutes.", "Just before serving, fold in cheese and add parsley."]
["ground beef", "onion", "ketchup", "salt", "Worcestershire sauce", "dry mustard", "elbow macaroni", "Parmesan cheese", "cooking oil", "celery", "water", "pepper", "oregano"]