3 cups blueberries
1 large can crushed pineapple with juice
1/2 cup sugar
1 box yellow cake mix
1-1/2 sticks margarine, melted
1 cup pecans, chopped

Mix together the blueberries, pineapple and sugar. Pour into a 10x13 -inch baking dish. Sprinkle the box of dry yellow cake mix on top, then drizzle with the melted margarine. Add pecans and bake at 350 degrees for about 45 minutes or until lightly brown.