Preheat your oven to 350°F (175°C). Gather the ingredients.
In a 9x13-inch baking dish, pour the apple pie filling. Evenly sprinkle the cake mix over the filling and top with melted butter.
Bake for about 40 minutes until the top starts to brown. Let the cake cool for 15 minutes before serving.
Serve warm, ideally with a scoop of ice cream.
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