1 can apple pie filling
1/2 box cake mix (dry) (Can use white, yellow, or spice flavor)
1/2 cup rolled oats
1/4 cup chopped pecans or walnuts (optional)
1/4 cup brown sugar
1 stick butter, melted
Preheat oven to 350 degrees Fahrenheit. Spread apple pie filling in bottom of baking dish. Sprinkle dry cake mix in an even layer over top, followed by oats, nuts (if using), then brown sugar.
Pour melted butter over the top and bake until golden brown, approximately 45 minutes or until golden brown on top and bubbly around the edges.