Preheat your oven to 350°F (175°C).
Grease a 9x13-inch baking dish or line it with parchment paper.
In a large bowl, dump in the cake mix, crack in the eggs, and scoop in the entire can of apple pie filling.
Stir everything together until just combined. Don’t worry if the apples break up—it's part of the charm.
Pour the batter into your prepared baking dish and spread it out evenly.
Bake for 40–45 minutes or until the top is golden brown and a toothpick poked in the center comes out clean.
Let it cool slightly before slicing. Or don’t. I won’t judge.