1 (10 oz.) pkg. frozen chopped broccoli, cooked and drained
1 can water chestnuts, chopped, optional
1 c. cooked rice
1 can cream of mushroom soup
1 (8 oz.) jar Cheez Whiz

Combine all ingredients and pour in greased casserole. Top with cracker crumbs. Drizzle with butter. Bake at 350 degrees until bubbly.