In this video, you’ll see how to make a super-simple, creamy chicken broccoli bake. This tasty casserole combines shredded cooked chicken breasts and broccoli florets with cream of mushroom soup, mayonnaise, and Cheddar cheese. Dry stuffing mix is the secret ingredient; sprinkled over the top, it adds a wonderfully flavorful crunch! Watch the video, then get Tracy’s recipe for Broccoli Chicken Casserole I. It's a great way to use up leftover chicken. This one-dish, comfort food casserole is ready in less than an hour.