Preheat the oven to 375 degrees F (190 degrees C).
Transfer the pie to a large bowl and break it into bite-sized pieces with a spatula or wooden spoon.
Spritz a baking pan with cooking spray and then scrape the broken-down pie into the prepared pan and smooth it into an even layer.
Mix up the fresh crumble topping, ensuring the butter stays cold.
Sprinkle the topping over the crushed pie, leaving an assortment of crumb sizes.
Place the pan into the oven and bake for 17-23 minutes until the topping is golden brown and bubbling.
Let it cool for at least 10 minutes before serving.
