1 pkg potato chips
1 can tuna
1 can mushroom soup
1/2 soup can milk

Put a layer of potato chips on bottom of a 9 x 13 inch dish. Mix mushroom soup and milk together in a bowl, pour over chips and tuna. Add another layer of potato chips.

Bake at 350°F for 45 minutes. The last five minutes of baking, garnish with cheese and let melt.