Mix together dry cake mix, melted butter and 1 egg. DO NOT add the ingredients from the back of the cake mix. Only use the dry cake mix.
Press into prepared pan
In separate bowl mix cream cheese, 2 eggs and powdered sugar
Pour over the first layer
Bake at 350 degrees for 40 minutes
The cake can be stored at room temperature for 2- 3 days. Be sure to store it in an airtight container or use aluminum foil or plastic wrap to help keep them from drying out. You can also store it in the refrigerator for 4-5 days and serve it chilled but it won't be as gooey.