Step 1

Preheat the oven to 350°F. Line a 9x5-inch loaf pan with parchment paper and lightly grease the short sides of the pan where parchment isn’t touching.

Step 2

In a large bowl, combine the mashed bananas with the sugar, oil, milk, eggs, and vanilla and whisk until combined.

Step 3

In a medium bowl, combine the flours, baking powder, baking soda, salt, cinnamon, and nutmeg.

Step 4

Add the dry ingredients to the bowl with the wet ingredients and stir until just combined, then fold in the walnuts.

Step 5

Pour into the prepared pan and sprinkle with the chopped walnuts and oats.

Step 6

Bake for 42 to 48 minutes, or until a toothpick inserted in the middle comes out mostly clean.