Preheat the oven to 375 F. Grease or line an 8x8 baking dish with parchment paper.
In a mixing bowl, whisk together all the wet ingredients (mashed bananas, peanut butter, maple syrup, flax eggs, and milk).
Then add in the dry ingredients (gluten-free rolled oats, cinnamon, baking powder, sea salt, and coconut sugar). Whisk together.
Combine the dry and wet ingredients gently with a spatula.
Fold in pecans and chocolate chips if using any.
Pour the mixture into the baking dish and sprinkle extra pecans and chocolate chips on top (optional). Bake 28 - 33 min or until toothpick comes out clean, but the top is still soft to touch.
Let it cool in the pan for 10 minutes then take it out on a cooling rack. Cut into squares and enjoy!
Notes
*If you don't have oat flour in hand, you can make your own by blending rolled oats in a high-speed blender.
** To make flax "eggs", mix 2 tablespoons of ground flax seeds and 4 tablespoons of filtered water or dairy-free milk. Let it sit for 5- 7 minutes to "gel" up.
*** If you prefer sweeter, use up to 3 - 4 tbsp coconut sugar to your taste.