chicken and rice casserole

2 c instant rice
2 c water
1-2 T chicken boulon
1 c shredded chicken
1 can corn (drained)
1 can black beans (rinsed and drained)
1 can cream of mushroom soup
1 can milk
2 c shredded cheese divided

Cook rice, water, and boulon.  Mix soup and milk together.  Combine together cooked rice, corn, beans, soup mixture, 1 c cheese.  Put into casserole dish.  Top with other 1 c cheese.  Bake uncovered for 20-30 min at 350*.  Until cheese is browned and soup is combined with casserole.