1. Preheat oven to 350 then spray a rectangular baking dish with nonstick cooking spray.
2. Spread pie filling on bottom of dish.
3. Sprinkle dry cake mix evenly over top the slowly pour soda over mix but do not stir.
4. Bake in preheated oven for 1 hour.
5. Sprinkle with pecans as soon as cake comes out of the oven.