Step 1

Preheat oven to 350 degrees. Grease a 10-12 inch cast iron skillet or 9x9 inch baking dish with butter.

Step 2

Open both cans of pie filling and pour into the prepared pan, spreading out evenly.

Step 3

In a large bowl stir together the oats, flour, brown sugar, cinnamon, baking powder, salt, and butter.

Step 4

Sprinkle the topping evenly over the filling.

Step 5

Place in preheated oven and bake for 15-20 minutes until bubbly and golden.