Ingredients:

4 potatoes, cooked and sliced
¼ C. margarine
2 Tbsp. flour
1 C. milk
½ tsp. salt
¼ tsp. pepper
½ C. onions, diced fine
¼ C. barbecue sauce
1 C. cheese, grated

Directions:

Layer half of potatoes in an 8 inch casserole dish. In a saucepan, melt butter over medium heat. Stir in flour and add milk gradually. Stir constantly until thickened. Remove from heat and stir in salt, pepper, onions, and barbecue sauce. Stir in cheese until melted. Pour half of sauce over potatoes and repeat the layers. Bake at 350 degrees F. for about 25 minutes.