If you want the full recipe, I found it here. Since I make my own pie filling I skipped the section for the pie filling and just mixed up the ingredients from the oats to the melted butter. I greased the pan, dumped in peach pie filling, and covered it with the oatmeal like topping. It seemed rather soupy but it baked up very well as you can see from the picture.
Here's the recipe I used:
3 cups quick cooking oats (I used Old Fashioned)
1/2 cup light brown sugar
2 teaspoons baking powder
1 teaspoon salt
1/2 teaspoon cinnamon
2 large eggs
1 1/2 cups buttermilk
1/4 cup melted butter
1/2 cup light brown sugar
2 teaspoons baking powder
1 teaspoon salt
1/2 teaspoon cinnamon
2 large eggs
1 1/2 cups buttermilk
1/4 cup melted butter
1 quart jar pie filling
Mix together the oatmeal, brown sugar, baking powder, salt. Whisk together the eggs, buttermilk and butter, and then stir into the oatmeal mixture.
Pour your pie filling into the pan. Spread oatmeal mixture on top.
Bake for 35 to 40 minutes, until lightly browned. Serve warm, with milk or cream poured over top if desired.
Enjoy!