Preheat oven to 350 degrees.
Beat together the oil, eggs, banana, and vanilla.
In a separate bowl, combine all of the other ingredients in a large mixing bowl.
Fold the liquid mixture into the dry ingredients until well combined.
Line a muffin tin with baking cups and full each one 3/4 full of the batter.
Bake for 20 minutes or until cooked through.
Serving suggestion: Tastes great served warm with melted grass-fed butter spread on top! :)