Preheat oven to 350 degrees. Lightly grease a 9x13 baking dish with non-stick spray.
Spread pie filling in the bottom of pan. Sprinkle with lemon juice and gently stir in.
2- 21 oz. canned cherry pie filling, 2 tsp. lemon juice
In a small mixing bowl combine cake mix and melted butter. The mixture will be crumbly. Sprinkle evenly over the pie filling.
1 pkg. yellow cake mix, 1/2 cup (1 stick) salted butter
Bake 35-40 minutes until the topping is golden brown and the edges are bubbly. Serve warm or at room temperature.