Broccoli and Rice Casserole

1 cup onions, diced
1 cup celery, diced
Butter
1 (10 oz.) frozen broccoli florets, thawed or frozen (it really doesn’t matter)
2 cups cooked rice
1 cans cream of mushroom soup
1 large jar of Cheez Whiz

Sautee onions and celery in butter. Heat the mushroom soup in a sauce pan undiluted with the Cheez Whiz. Add to onions and celery. Add cooked rice and broccoli. Top with shredded cheese. Bake at 350 degrees for 1 hour.