In a mixing bowl, whisk together the baking mix, the flour, baking powder, 2 tablespoons of the sugar, the beaten egg, the salt, the canola oil, the vanilla, and the milk. The batter will be pretty thin.
Spray a 9" x 9" baking dish with the cooking spray and spread the apple pie filling in the bottom. Pour the batter over it and place into the preheated oven.
After 25 minutes, remove the cobbler from the oven and sprinkle the remaining sugar (1 tablespoon) and the cinnamon over the top. Return it to the oven right away and bake for 15-20 more minutes until it is light brown on top. You can test the top with a toothpick at the end of this time to see if it comes out clean. If so, it's done. If not, bake for a few more minutes.
NOTE: You can also substitute cherry or blueberry pie filling for this recipe!