Preheat oven to 450 degrees.
Prepare baking dish with non-stick baking spray. Whisk to combine the can of soup and milk. Set aside.
Put the cooked broccoli on the bottom of the baking dish. Layer the cubed chicken on top of the broccoli.
Pour the soup over the broccoli and chicken mixture. Sprinkle the shredded cheddar cheese on top.
Stir to combine the bread crumbs and melted butter.
Sprinkle the butter and bread crumb mixture on top of the cheddar cheese. Bake at 450 degrees for 20 minutes or until bubbly and a light brown.
Enjoy!