To a 9 x 13 baking dish add blueberry pie filling.
Top with crushed pineapple.
Sprinkle on dry cake mix
Top with coconut.
Cut butter into pats and place evenly around the pan.
Bake for approximately 1 hour.
Serve warm, at room temperature or even cold!
Notes
Let the dump cake cool for at least half an hour before serving so it's not runny.I'm a purist and love to eat my dump cakes as is, but you can always add something creamy like vanilla ice cream or whipped cream.