Preheat: Set your oven to 340°F (170°C). Grease a standard 9x5 inch loaf pan.
Mix Wets: In a large bowl, whisk together the mashed bananas, olive oil, orange juice, coconut sugar, and honey until well combined.
Combine: Sift the flour, baking powder, baking soda, and salt directly into the wet mixture. Fold gently with a spatula just until the flour disappears. Do not overmix, or the bread will be tough.
Add Crunch: Fold in the chopped walnuts.
Bake: Pour the batter into the prepared pan. Bake for 35–45 minutes.
The Test: Insert a toothpick into the center; it should come out clean or with just a few moist crumbs.