Step 1

Preheat the oven to 325ºF. Spray a 9x13-inch baking dish with nonstick cooking spray.

Step 2

Spread the pie filling in the bottom of the baking dish.

Step 3

Evenly pour the pineapple over the top of the cherry pie filling.

Step 4

Sprinkle the dry cake mix over the pineapple.

Step 5

Melt 1/2 cup of the butter and pour evenly over the top of the cake mix.

Step 6

Take the remaining 1/2 cup of butter and cut into small pieces. Place the pieces of butter over the top of the cake.

Step 7

Bake the cake in the preheated oven until the top is golden brown and the filling is bubbling around the edges, about 40 minutes.

Step 8

Serve the cake warm with ice cream, if desired.