Chocolate Chunk Banana Oatmeal Bars

0 Preheat oven to 350 F.
1 In a medium bowl, mix together the mashed bananas, oil, maple syrup, egg, and vanilla extract. Whisk together until smooth. 
2 Add in the oats, oat flour, cinnamon, salt and baking soda.
3 Fold in the chocolate chunks, saving some to top with. 
4 Pour into a parchment lined 8 X 8 baking dish, top with remaining chocolate and bake on 350 for about 20-25 minutes, until the top starts to brown and its firm to touch.  
5 Remove from oven and let cool for 5 minutes, then slice into 9 bars. 
6 Keep stored on the counter for up to 4 days, or in the fridge for up to 2 weeks.