Preparation
Preheat oven to 350 degrees. Spray or line muffin cups.
In a large bowl, whisk together flours, wheat germ, baking soda, salt and walnuts until well combined.
In a small bowl, combine brown sugar, canola oil, egg, and milk and whisk until well blended. Add the banana and mix well, then add to the flour mixture and mix until well blended.
Divide the batter evenly among the muffin cups. Bake 25-30 min for regular muffins, 10-12 min for mini muffins.