Preheat the oven to 350°F and spray two 8.5x4.5-inch loaf pans with nonstick spray and set aside.
In a large bowl, whisk together the flour, pumpkin pie spice, baking soda, cinnamon, salt, and baking powder. Set aside
3 cups all-purpose flour, 2 teaspoons baking soda, 1 teaspoon salt, ½ teaspoon baking powder, 1 teaspoon ground cinnamon, 2½ teaspoons pumpkin pie spice
In a large measuring cup or medium bowl, beat together the sugars, oil, eggs, and vanilla. Then beat in the pumpkin and mashed banana.
½ cup granulated sugar, 1 cup light brown sugar, ⅔ cup vegetable oil, 3 large eggs, 2 teaspoons vanilla extract, 1 cup 100% pumpkin, 1¼ cups mashed overripe banana
Add the wet ingredients to the dry ingredients and beat until combined.
Divide the batter between the two greased loaf pans and bake for 45 to 60 minutes or until a cake tester comes clean from the center of the loaves.