Dump Cake

Spray bottom of 13 x 9 x 2-inch glass dish with Pam or Baker's Joy.

Spread pineapple in bottom of dish.

Layer blueberries on pineapple.

Sprinkle sugar on blueberries.

Spread dry cake mix over berries; sprinkle nuts on top of mix.

Drizzle margarine over nuts.

Cook in oven at 350° for 1 hour.

Make slits through cake at 15-minute intervals.