Cheddar Parmesan Potatoes
["1/4 c. margarine", "1/4 c. flour", "2 c. milk", "1/2 tsp. salt", "1 c. (4 oz.) shredded Cheddar cheese", "1/2 c. grated Parmesan cheese", "5 c. sliced potatoes, sliced, cooked and peeled (about 5 medium)", "1/4 c. buttered bread crumbs"]
["In saucepan, melt margarine over low heat.", "Stir in flour until smooth.", "Gradually add milk; cook and stir over medium heat until mixture thickens.", "Remove from the heat.", "Add the salt, Cheddar cheese and Parmesan cheese; stir until cheese melts.", "Add potatoes; stir gently to mix.", "Place in a greased 2 quart baking dish.", "Sprinkle bread crumbs on top.", "Bake, uncovered, at 350\u00b0 for 30 to 35 minutes.", "Yield:", "6 to 8 servings."]
["margarine", "flour", "milk", "salt", "Cheddar cheese", "Parmesan cheese", "potatoes", "buttered bread crumbs"]