Chicken can be raw or cooked, if raw, adjust cooking time upward to ensure chicken is done.
Mix sour cream, cheese, Worcestershire sauce, garlic powder, and lemon juice together until blended. Add chicken and mix well until coated. Spread evenly in baking dish.
Spread stuffing mix evenly on top of chicken mixture. Drizzle melted butter on top.
Bake at 350F for 30 minutes or until hot, melted, and bubbling.