Whip up this cozy pumpkin pie cake with cake mix for the easiest Thanksgiving dessert ever! With a creamy pumpkin spice filling, buttery yellow cake topping, and warm holiday flavors, it’s the perfect make-ahead dessert recipe for Thanksgiving, family gatherings, or chilly fall nights. Top it with whipped cream or caramel sauce for extra sweetness. A no-fuss, semi-homemade pumpkin dessert everyone will ask for again and again!