Broccoli Cheese and Rice Casserole

3 cups of rice, cooked

1 bunch of fresh broccoli

1 onion, chopped

1 large jar Cheez Whiz

1/2 lb of butter

1 can cream of mushroom soup

Cook rice and cut up broccoli. Mix in bowl. Melt butter in a large skillet and add onion and saute. Add soup until hot. Pour over rice and broccoli. Add Cheez Whiz. Mix well. Pour into casserole dish. Bake 45 minutes to 1 hour at 350F.