Begin by preheating your oven to 350 degrees Fahrenheit. Then prep your 9"x13" pan by spraying with a non-stick cooking spray.

Pour the apple pie filling in the bottom of the baking dish, using a rubber spatula to spread it out into an even layer.

Sprinkle cake mix over the apple mixture - again, in an even layer - and shake the apple pie spice over the top of the cake mix.

Pour the melted butter over the top of the dessert as evenly as possible. Go slow! You want to avoid there being many dry spots.

Place the dish in the oven and bake for 40-50 minutes, until the crumb topping is golden brown and the apple filling is hot and bubbly.

Enjoy with a scoop of vanilla ice cream or some whipped cream!