Tuna-Noodle Casserole
["1 onion, diced", "1 can mushroom soup", "1/2 c. milk", "1 large can tuna, drained", "1 c. cooked noodles", "1/2 c. frozen peas, cooked and drained", "1 c. Cheddar cheese, shredded"]
["Combine all ingredients, except cheese.", "Pour into a greased casserole dish.", "Top with cheese.", "Bake at 375\u00b0 for 25 minutes or until brown."]
["onion", "mushroom soup", "milk", "tuna", "noodles", "frozen peas", "Cheddar cheese"]