Preheat oven to 350 degrees. Spray baking dish with non stick cooking spray.
Prepare chicken stuffing mix using just 1-½ cups water and butter as per package instructions.
In large mixing bowl, combine the cheese soup and gravy, whisk to combine. Add the cooked chicken and broccoli and stir again. Pour into the casserole dish.
Sprinkle with half the cheese. Top with stuffing and sprinkle with remaining shredded cheese. Cover with aluminum foil.
Bake 40 minutes. Uncover, if desired place under broiler for 2-3 minutes until golden brown - watch carefully so it doesn't burn. Enjoy!