Preheat the oven to 350ºF. Grease an 9x5-inch loaf pan.
In a large bowl, whisk together the flour, sugar, baking powder, baking soda, salt, and pumpkin pie spice.
In another bowl, mix together the bananas, eggs, peanut butter, applesauce, oil and vanilla. Pour the banana mixture into the flour mixture and mix just until combined. Fold in the chocolate chips.
Pour the batter into the loaf pan. Bake until a tester inserted in the center comes out clean, about 60 minutes, covering the top with foil when it starts to get brown. Cool in the pan for 10 minutes, then remove to cool completely on a cooling rack.
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Notes
Nutrition information provided as an estimate only. Various brands and products can change the counts. Any nutritional information should be used as a general guide.