Pour lemon pie filling into the bottom of the greased baking dish, ensuring it spreads into the corners.
Top with half of the cake mix, evenly distributing it. Place cubed cream cheese evenly on top of the cake mix, then sprinkle the remaining cake mix over the cream cheese.
Take thinly sliced butter pats and place them in a single layer on top of the cake mix, covering as much of the surface of the cake as possible.