1 tbsp. chopped onion
1 tsp. butter
1 can mushroom soup
1/3 c. milk
1 (7 oz.) can tuna fish
2 c. cooked noodles (4 oz. uncooked)
3/4 c. crushed potato chips

Cook onions in butter until soft. Stir soup, milk and onions together. Break tuna into chunks. Mix lightly with soup mixture and noodles.

Place in greased 1 1/2 quart casserole. Top with crushed potato chips. Bake at 350 degrees for 20 to 30 minutes.