When I first tasted this dish, I couldn’t come to terms with the fact that it contained only 3 ingredients

Two 21-ounce cans blueberry pie filling
One 16.9-ounce package blueberry muffin mix
2 sticks butter, melted

1. Preheat the oven to 350 F. Spread the blueberry pie filling out in a greased 9-by-13-inch casserole dish.