Preheat oven to 350 degrees
Lightly grease a 9x13" pan
Spread undrained pineapple over bottom of pan. Sprinkle on blueberries and 3/4 cup sugar.
Spread dry cake mix over all. Drizzle with melted butter. Top with nuts and remaining 1/4 cup sugar.
Bake for 25 minutes, remove from oven. Cut down to bottom of pan to let juice rise. Return to oven and bake 10-15 minutes longer.
*you can use less sugar I'd desired.
Go to full version of