2 (10 3/4 oz.) cans cream of mushroom soup
2 (6 1/8 oz.) cans tuna in water
6 oz. white egg noodles, uncooked
1 sm. can mushrooms, sliced (optional)

Cook noodles according to package directions. Mix soup, tuna and mushrooms in large saucepan and heat until mixture is thoroughly warmed, stirring occasionally. Add drained noodles; mix well and heat through.