Old Fashioned Cheese Potatoes
["1/4 c. margarine", "1/4 c. all-purpose flour", "2 tsp. salt", "1/2 tsp. pepper", "2 1/2 c. milk", "1 1/2 c. shredded process American cheese", "6 medium potatoes, peeled and thinly sliced"]
["In a saucepan, melt margarine.", "Add the flour, salt and pepper.", "Cook and stir until a thick paste forms.", "Gradually add milk, cook and stir until the mixture begins to thicken.", "Add cheese, cook and stir until melted.", "Place potatoes in a greased baking dish.", "Pour sauce over potatoes.", "Bake, uncovered, at 350\u00b0 for 1 hour or until potatoes are tender."]
["margarine", "all-purpose", "salt", "pepper", "milk", "American cheese", "potatoes"]