This caramel apple dump cake recipe is simple to make with just 5 convenient ingredients for a crowd-pleasing dessert, perfect for fall entertaining.
Preheat the oven to 350 degrees F (175 degrees C). Spray a 9x13-inch baking pan with cooking spray.
Spread apple pie filling in an even layer in the pan. Drizzle caramel sauce evenly over apples. Sprinkle with cake mix. Drizzle with melted butter. Sprinkle with walnuts.
Bake in the preheated oven until cake is golden and top is bubbling, 50 to 55 minutes. Let cool at least 15 minutes. Serve warm or at room temperature.