Preheat the oven to 350°F (180°C). Line a 8×5 inch loaf pan with parchment paper.
Mash bananas in a large mixing bowl using the back of a fork. Add eggs, coconut oil, maple syrup, and vanilla extract, whisk until combined.
Stir in almond flour, baking powder, cinnamon, and salt. Fold in chopped walnuts and pour the batter into the prepared pan.
Optional: Sprinkle with additional chopped walnuts and oats.
Bake for 60 minutes in the preheated oven. → The bread is done when a toothpick inserted in the center comes out mostly clean.
Remove the bread from the oven and let it cool in the pan on a wire rack for 10 minutes. Remove from the pan and let it cool completely before slicing.
