1 c. uncooked rice
1 1/2 c. uncooked med. noodles
1/4 lb. butter
1 pkg. onion soup mix
1 sm. can mushrooms, drained
4 c. boiling water

Mix together all the ingredients in a large bowl. Stir until butter is dissolved. Pour mixture into greased 9 x 12 inch baking dish. Bake in preheated 350 degree oven for 50-60 minutes (or until water is absorbed). Can be frozen.