Broccoli & Rice Casserole

10oz package frozen chopped broccoli, cooked and drained
1/2 cup butter, melted
1-1/3 cup cooked rice
8oz jar Cheese Whiz
1 can cream of mushroom soup

Mix ingredients. Pour into greased casserole dish. Bake at 350 for 40-45 minutes.

Can also be cooked in a greased slow cooker for 4 hours on low.