Blueberry Pecan Crunch

20 oz crushed pineapple
2 cups blueberries, fresh or frozen
½ cup sugar
1 box yellow cake mix
1 stick of butter, melted
1 cup Pecan pieces
¼ cup sugar

Grease 9 X 13 pan. Put pineapple with juice in pan and add blueberries and ½ cup sugar. Sprinkle cake mix on top. Drizzle melted butter on top. Sprinkle Pecans and ¼ cup sugar on top. Bake at 375° for 45 minutes.