First appearance of this classic!
From a box sold in San Antonio, Texas.
Tuna Noodle Casserole
1 can tuna
1 can cream of mushroom soup
1/2 can milk
1/2 cup mayonnaise
1 cup grated cheddar cheese (optional)
Drain tuna, cook noodles in salted water. Mix all ingredients well. Grease casserole dish. Bake at 400 deg. for 20 to 30 minutes.