Potato chips
1 can asparagus
1 or 2 cans tuna
1 can mushroom soup

Grease casserole. Alternate layers of potato chips, asparagus and tuna. Put potato chips first and have last layer potato chips. Dilute soup with 1/3 soup can of water and pour over casserole. Bake in 350 degree oven for about 40 minutes or less.