Preheat oven to 350 degrees F. Prepare a 9×5 inch loaf pan with butter or parchment paper liner.
n a large bowl mix pumpkin, mashed bananas, eggs, brown sugar, vanilla, cinnamon, and nutmeg until smooth.
In another medium bowl, whisk together flour, baking soda and salt. Slowly stir in the dry ingredients into wet ingredients until well blended.
Pour batter into prepared loaf pan. Bake in the oven for 50-60 minutes, rotating once, or until a toothpick inserted into the center comes out clean.
Let cool in pan on wire rack.