Place bananas in 9-inch round pan sprayed with cooking spray; sprinkle with 1/4 cup nuts. Microwave brown sugar, butter, peanut butter, syrup and water in small microwaveable bowl on HIGH 1 min. or until butter is melted; stir until mixture is well blended. Drizzle over ingredients in pan.
Use pulsing action to process granulated sugar and remaining nuts in food processor until nuts are almost ground; pour into shallow dish.
Dip dough pieces, 1 at a time, in nut mixture, turning to evenly coat all sides of each piece. Arrange in single layer over ingredients in pan; top with any remaining nut mixture.
Bake 25 min. or until golden brown. Cool 1 min.; invert onto plate. Remove pan. Top bread with any nuts remaining in pan; cool slightly.