1 bag frozen blueberries
1 large can crushed pineapple
1 box yellow cake mix
1/2 cup (1 stick butter), melted
1/2 cup sugar
2 cups pecan halves

Put blueberries in bottom of 13x9-inch dish. Pour pineapple juice and all over blueberries. Sprinkle cake mix over all that (using all of cake mix), then pecans on top of that, then pour melted butter over this, then sprinkle well with sugar, then bake at 350°F until golden brown.