Preheat oven to 350 degrees. In a bowl, mix water or broth and butter, until butter melts. Add stuffing mix and blend. Let stand for 2 minutes and then mix lightly with a fork to break up pieces.
Spoon stuffing into a shallow 2-quart baking. dish. Arrange chicken and broccoli pieces over stuffing. In a bowl, whisk chicken soup and milk until smooth. Pour over casserole. Sprinkle cheese on top.
Bake in a preheated oven for 30 minutes or until bubbly hot. Makes 8 servings. Enjoy!