Preheat the oven to 400°F and grease the sides and bottom of an 8x8-inc. baking dish. Keep the butter cold until you are ready to combine ingredients.
Scrape both cans of apple pie filling into the dish and spread into an even layer. Sprinkle the ground cinnamon evenly over the top.
In a large bowl, combine the flour, sugar, and cold cubed butter. Use a fork to cut the butter into the dry ingredients until the mixture is crumbly.
Stir the chopped pecans into the crumble, then spread the mixture over the apple filling.
Bake for 35 to 40 minutes, until the top is golden and the filling bubbles around the edges. Let sit for about 5 minutes since the filling will be very hot. Serve warm plain or with vanilla ice cream or whipped cream.
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