1 cup macaroni
Salt to taste
1/4 cup margarine
3/4 cup milk
1 cup grated American cheese
1 can cream of mushroom soup
1 (7 oz.) can Tuna, flaked

Cook macaroni according to package directions; drain. Blend milk and soup; heat, stirring constantly until heated through. Turn heat off and add cheese. Mix thoroughly. When cheese is melted or almost, add margarine, macaroni, Tuna. Salt may be added any time. Pour into lightly greased casserole. Bake in 350 degree oven for 20 to 30 minutes.