Preheat oven to 350F. Line a 9x5 loaf pan with parchment paper, letting it hang over the sides. Set aside.
In a large bowl, whisk mashed banana, pumpkin, eggs, sugar, oil, and vanilla until smooth.
In a separate medium bowl, whisk flour, baking soda, pumpkin pie spice, and salt. Fold flour mixture into liquid until just combined, then fold in chocolate chips.
Scrape batter into prepared pan and gently smooth top. Sprinkle with additional chocolate chips if desired. Bake bread at 350F 55-60 minutes or until a toothpick inserted in middle comes out clean. Cool bread completely, then remove from pan and slice. Enjoy!