Separate onion rings and put one layer in the bottom of a casserole dish. Add a layer of potato chips and a layer of cheese. Repeat layers until all ingredients are used. Cover with the cream of mushroom soup.

Cover and bake at 350° for 1 1/2 hours.

This makes an excellent side dish for any meal and is very good reheated

*I find that Vidalia onions work best but this can be made with other types of onions.