Tuna Casserole - cooking recipe

Ingredients

1 can cream of mushroom soup
1/2 c. milk
1 (7 oz.) can tuna
1/4 c. onion
1/2 c. shredded cheese
2 c. cooked macaroni

Preparation

Mix ingredients in a 1 1/2-quart casserole.
Cook at 400\u00b0 for 30 minutes.