1/4 c butter
1/4 c flour
1/2 tsp salt
1 1/2 c milk
4-5 medium potatoes, peeled and sliced
1 small onion, chopped
6 bacon strips, cooked and crumbled
1 c grated cheese
Steam potatoes for 10 minutes till partially cooked. In saucepan melt butter. Stir in flour and salt until smooth. Gradually add milk. Bring to boil; cook and stir for 2 minutes or until thickened.
In a greased 2 qt baking dish, layer potatoes and onions. Pour white sauce over the top. Sprinkle with bacon and cheese. Cover and bake at 350 for 25-30 minutes or until tender.