8 oz. pkg. elbow macaroni
2 sm. cans chunk tuna
1 can cream of mushroom soup
1 c. milk
3/4 c. dry bread crumbs or Club crackers
1/4 c. chopped onion
1/4 lb. sharp cheese, diced, Velveeta

Mix together. Put in greased baking dish. Cover with crumbs. Dot with butter. Bake at 350 degrees.