Step 1

Preheat the oven to 350 degrees Fahrenheit.

Step 2

In a large mixing bowl, stir together the cake mix and the lemon pie filling.

Step 3

Pour the mixture into a 9X13 baking pan.

Step 4

Bake for 30-33 minutes.  The top will be fluffy and cracker and the center will sink in slightly.

Step 5

Let the cake cool completely at room temperature.

Step 6

Top with the whipped topping and then the cake is ready to serve and enjoy!