Broccoli and Rice Casserole

1 cup celery, chopped
1 small onion, chopped
2 tablespoons butter
1 (10 ounce) package frozen broccoli, cooked
1 cup cooked rice
1 can cream of mushroom soup
1/2 small jar cheese wiz

Directions: Saute Celery and onion in butter. Add brocolli, rice and soup; mix. Pour into baking dish; dot cheese on top. Bake at 350 degrees until bubbly. Can use more rice if you want.