Preheat oven to 350°F. Grease the bottom of a 9x13-inch pan.
Pour one cup of yellow cake mix into a medium-size mixing bowl and set aside.
In another medium bowl, mix the remaining cake mix, melted butter, and 1 egg. Press into the prepared pan.
In another bowl, combine the pumpkin pie filling, evaporated milk, and eggs. Mix until smooth, then pour over the crust in the baking pan.
Grab the bowl with the cup of cake mix and add sugar, pumpkin pie spice, and ground cloves. Cut in the butter until the mixture looks crumbly, then sprinkle over the pumpkin layer.
Bake for 45-55 minutes or until a toothpick inserted in the middle comes out clean. Let cool, then refrigerate for at least 30 minutes before cutting and serving.
Top with whipped cream, if desired, and a sprinkle of cinnamon.