01 -  Preheat oven to 350°F. Grease a 9x5-inch loaf pan or line with parchment paper. 
 02 -  In a large bowl, whisk together pumpkin purée, mashed bananas, eggs, melted coconut oil, maple syrup, and vanilla extract until thoroughly blended. 
 03 -  In a separate bowl, blend flour, protein powder, baking soda, baking powder, salt, cinnamon, nutmeg, and ginger using a whisk. 
 04 -  Add the dry ingredient blend to the wet mixture, stirring just until incorporated; avoid overmixing. 
 05 -  Gently fold in walnuts, pecans, and/or chocolate chips as desired. 
 06 -  Pour batter evenly into prepared pan and smooth the surface. Bake for 50–55 minutes until a toothpick inserted in the center emerges clean or with a few moist crumbs. 
 07 -  Let loaf cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.