Supper In A Skillet
["1 1/2 lb. ground beef", "1 Tbsp. oil", "1/2 c. chopped onion", "1 1/2 c. chopped celery", "1 1/2 c. catsup", "1 c. water", "1 c. shredded American cheese", "1/2 c. Parmesan cheese", "2 Tbsp. chopped parsley", "1 Tbsp. Worcestershire sauce", "2 tsp. salt", "1/8 tsp. pepper", "1/2 tsp. dry mustard", "1 tsp. oregano", "1/4 lb. shell macaroni, cooked and drained"]
["Cook beef in oil until red disappears.", "Add onion and celery. Cook until onion is soft.", "Add catsup, water, Worcestershire sauce and other seasonings.", "Mix well.", "Stir in macaroni.", "Cover. Simmer about 25 minutes.", "Fold in cheese just before serving. Sprinkle with Parmesan and parsley.", "Serve hot from skillet."]
["ground beef", "oil", "onion", "celery", "catsup", "water", "American cheese", "Parmesan cheese", "parsley", "Worcestershire sauce", "salt", "pepper", "dry mustard", "oregano", "shell macaroni"]