1 sm. onion, chopped
1/3 c. butter
1 (6 oz.) can chopped mushrooms
1 c. uncooked long grain rice
1 (10 1/2 oz.) can beef or chicken broth
3/4 c. water
1/2 tsp. salt
1/4 tsp. pepper

Saute onion in melted butter. Add mushrooms, rice, broth, water, salt and pepper. Pour ingredients in 2 quart casserole. Cover and bake 1 hour at 350 degrees.