Old Fashioned Cheese Potatoes
["1/4 c. margarine", "1/2 c. all-purpose flour", "2 tsp. pepper", "2 1/2 c. milk", "1 1/2 c. (6 oz.) shredded processed American cheese", "6 medium potatoes, peeled and thinly sliced"]
["In saucepan melt butter.", "Add flour, salt and pepper.", "Cook and stir until a thick paste forms.", "Gradually add milk.", "Cook and stir until mixture begins to thicken.", "Add cheese.", "Cook and stir until melted.", "Place potatoes in a greased 13 x 9-inch dish.", "Pour sauce over and bake at 350\u00b0 for 1 hour."]
["margarine", "all-purpose", "pepper", "milk", "American cheese", "potatoes"]