1 (16 oz.) bag potato chips, crushed
2 (6 1/2 oz.) cans tuna
2 (10 3/4 oz.) cans cream of mushroom soup, undiluted
2 2/3 c. milk

Combine ingredients; mix well. Pour into 2 1/2 quart casserole. Bake at 350 degrees for 30 minutes.