Preheat the oven to 350°
In a large bowl, add the yellow cake mix, melted butter and egg. Stir everything together until it is a a dough consistency
Spread the mixture onto the bottom of a greased 9 x 13” baking dish.
In a large bowl, add the pumpkin and softened cream cheese. Using a hand mixer, beat the two together until evenly combined.
Beat in the melted butter, vanilla and eggs. Then, slowly beat in the powdered sugar until it’s all fully incorporated.
Add the mixture evenly on top of the crust.
Place it into the oven for 40-50 minutes until the sides are slightly browned and the center is slightly gooey.
Let it cool completely and place it into the refrigerator for at least one hour.
Finally, slice it into squares add whipped cream (optional) and enjoy!