Preheat oven to 350 degrees.
In a large bowl, combine the flours, salt, cinnamon and baking soda.
In the bowl of a standing mixer cream together the butter and sugars until fluffy, 2-3 minutes.
Add the egg, vanilla, orange zest and banana.
In one batch, add the dry ingredients. Mix until just combined.
Fold in nuts.
Using a small cookie scoop, drop rounds of dough onto baking sheet.
Bake 10 – 12 minutes until edges are lightly golden brown.
Cool on cooling racks.