Lemon Cream Cheese Dump Cake Ingredients: 1 (15.25 oz) box of lemon cake mix 2 (8 oz) packages of cream cheese, softened ½ cup of sugar 1 (21 oz) can of lemon pie filling Directions: Preheat the Oven: Preheat your oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish.