Saucy Ham And Potato Bake
["2 Tbsp. chopped onion", "1/4 c. butter", "1/4 c. flour", "1 tsp. salt", "1/2 tsp. dry mustard", "dash of pepper", "1 1/2 c. milk", "2 c. (8 oz.) Cheddar cheese", "ham, cut in 1/8-inch slices", "6 c. cooked potato slices"]
["Saute onion in butter.", "Blend in flour and seasonings. Gradually add milk; cook, stirring constantly until thick.", "Add 1 1/2 cups cheese. Stir until melted.", "Toss potatoes in cheese sauce.", "Pour in casserole dish, reserving 1 cup potato slices. Arrange ham and remaining potato slices on top of casserole.", "Bake at 350\u00b0 for 30 minutes.", "Top with cheese."]
["onion", "butter", "flour", "salt", "dry mustard", "pepper", "milk", "Cheddar cheese", "ham"]