Sausage Casserole

1 pound Italian sausage, removed from
    casing and crumbled
1 onion
1 cup raw rice
1 can mushrooms, drained
1 can cream of chicken soup
3 soup cans water

Brown sausage and onion and drain. Add other ingredients. Put into a greased casserole. Cover and bake at 325 degrees F for 1 hour.