Cook broccoli according to package and chop up.
Put the broccoli into an 8-inch square dish.
Top the broccoli with chicken.
In a bowl, mix the milk, sour cream, and canned soup to make a soup mixture.
Pour the soup mixture over the chicken.
Top the chicken and soup mixture with cheese.
Mix the melted butter and bread crumbs and sprinkle on top of the cheese.
Season with salt and pepper.
Cook at 450 degrees for 15-20 minutes.