In a bowl, whisk together flour, oats, baking powder, salt, and cinnamon.
Make a well in the dry ingredients, and pour in the milk and vanilla extract. Mix together with a spoon. Add in half of the banana slices and the chocolate chips.
Mix until bananas and chocolate chips are incorporated.
Heat a skillet over medium heat. Add 1/2 tbsp butter and melt it.
Add the entire batter to the pan. Use a spoon to spread the batter to the side of the pans.
Cook until the pancake starts to bubble.
Then, flip to the other side and cook another few minutes.
Put the pancake on a plate and top with the remaining banana slices and maple syrup. Peanut butter would also make a good topping here.