In a small dish combine all ingredients except potatoes.
Arrange potato slices one layer deep on a greased baking tray, then sprinkle lightly cheese mixture.
Bake at 400° F until nice and brown, about 30 minutes, depending on how thinly the potatoes are sliced.
Notes
Variation: Sweet potatoes make an interesting change. They work best if sliced extremely thinly, but watch them carefully because the sugar in them makes them burn easily.