Preheat the oven to 350 degrees. Line baking sheet with parchment paper.

In a medium bowl, whisk together flour, oats, baking powder, baking soda, salt, cinnamon, and nutmeg.

In a large bowl, cream together the coconut oil and the sugar on medium speed.

Add the egg, followed by the mashed banana and vanilla extract.

Working by hand, stir in the flour mixture until just combined.

Stir in the chocolate chips.

Drop heaping spoonfuls onto baking sheets, flattening each cookie slightly. Bake for about 10-12 minutes, or until cookies become light brown at the edges. Do not over-bake these cookies!

Let cool on baking sheet for 3 or 4 minutes, then transfer to a wire rack to cool completely.