Preheat oven to 350 degrees F.
Spray 8x8" pan with cooking spray and set aside.
In medium bowl, combine flour, oats, baking powder, cinnamon, and flaxseed.
Mix until combined. Set aside.
In separate bowl, combine honey, almond milk, vanilla, oil, and mashed banana.
Add dry ingredients to wet ingredients and mix lightly until just combined.
Fold in blueberries.
Transfer to prepared pan and bake in preheated oven for 15-20 minutes, or until tester comes out clean.
Cool and cut into bars.
Store in refrigerator in closed container.
Enjoy!