PREHEAT oven to 350º F. Grease and flour two 9 x 5-inch loaf pans.
COMBINE flour, baking powder, cinnamon, ginger, baking soda and salt in medium bowl. Combine pumpkin, eggs, granulated sugar, brown sugar, bananas and vegetable oil in large mixer bowl; beat until smooth. Gradually beat in flour mixture; stir in nuts. Spoon into prepared loaf pans.
BAKE for 55 to 60 minutes or until wooden pick inserted in center comes out clean. Cool in pans on wire racks for 10 minutes; remove to wire racks to cool completely.