Preheat oven to 350 degrees F and grease two loaf pans or 2 muffins pans.
In a small bowl whisk flour, baking soda, salt, baking powder, cinnamon and all spice together. In a medium bowl beat the granulated sugar, brown sugar, oil and eggs together until combined. Add the pumpkin puree and mashed bananas and mix thoroughly.
Stir your flour mixture into your wet ingredients and fold in the pecans.
If you are doing a bread loaf divide the batter evenly between the two pans. Bake for 50-60 minutes, or until a toothpick inserted into the center comes out clean.
If you are doing muffins divide the batter evenly between the puffin pans. Bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean.