In a large mixing bowl combine oats, oat flour, ground cinnamon, baking powder and baking soda. Whisk until combined.
In a small bowl, mash the banana with a fork until almost smooth. Whisk in the milk, melted honey, eggs, vanilla extract and melted butter until blended together.
Pour the banana mixture into the oat mixture and stir until combined- do not overmix. The batter will be slightly lumpy and thick.
Bring a griddle or frying pan to medium heat. Once hot, grease your pan with melted butter, coconut oil, or non stick cooking spray. Drop the batter by 1/4 cupfuls onto the griddle, spacing the pancakes about 2 inches apart.
Allow the pancakes to cook for about 2 minutes or until you notice small bubbles forming in the batter. Flip the pancakes carefully with a spatula and allow them cook for about 1-2 minutes more. Repeat until you are out of batter and be sure to liberally grease the grilled after every batch. Transfer the pancakes a cooling rack or platter and cover with foil. Enjoy!