01 - 
                Preheat oven to 350°F. Grease 9x13-inch baking pan.
              
              
              
                02 - 
                Mix cake mix with melted butter until crumbly. Press half into pan bottom.
              
              
              
                03 - 
                Spread lemon pie filling evenly over cake base.
              
              
              
                04 - 
                Beat cream cheese, sugar, egg, vanilla, and lemon zest until smooth. Spread over lemon filling.
              
              
              
                05 - 
                Sprinkle remaining cake mixture over cream cheese layer.
              
              
              
                06 - 
                Bake 35-40 minutes until golden and set. Cool 45 minutes before slicing. Dust with powdered sugar if desired.