1. Preheat oven to 350°F.
2. Combine butter, cereal and brown sugar in a bowl.
3. Spoon 3 tablespoons of apple pie filling into each ramekin. Add 1/2 cup rice pudding to each ramekin. Sprinkle each with 1 tablespoon of topping mixture.
4. Bake for 15 minutes, or until heated through