Hot Dog Casserole
["3 Tbsp. oleo", "3 Tbsp. flour", "1 tsp. salt", "3/4 tsp. pepper", "1 lb. hot dogs, sliced", "3/4 tsp. dry mustard", "1 1/2 c. milk", "3/4 c. mayonnaise", "6 medium cooked and diced potatoes", "1 medium onion", "1 can drained green beans", "2 Tbsp. bread crumbs"]
["Melt oleo in small pan.", "Remove from heat; blend in flour, salt, mustard and pepper.", "Slowly stir in milk.", "Cook over medium heat.", "Stir constantly until mixture thickens and boils 1 minute. Remove from heat; stir in mayo.", "Fold in rest; pour into 13 x 9-inch pan.", "Top with crumbs.", "Bake at 350\u00b0 for 45 minutes."]
["oleo", "flour", "salt", "pepper", "hot dogs", "dry mustard", "milk", "mayonnaise", "potatoes", "onion", "green beans", "bread crumbs"]