Preheat oven to 350°F. Grease a 9x13-inch baking dish.
Pour pineapple into prepared baking dish; sprinkle with brown sugar and cinnamon. Top with LUCKY LEAF Premium Blueberry Pie Filling. Sprinkle with cake mix and pecans; drizzle with butter.
Bake for 40-50 minutes or until filling is bubbly and topping is golden brown.
Serve warm with ice cream if desired.