Pre-heat your oven to 350F. Grease a loaf pan or line with parchment paper. In a small bowl, whisk together your milled flax seed and water. Let sit for 5 minutes.
In a medium mixing bowl, beat together your Earth Balance and maple syrup. Add your "flax eggs" (water + milled flax seed mixture) and mashed bananas and stir to combine.
In a separate large bowl, combine whole grain flour, baking soda, baking powder, and salt. Once combined, add the liquid banana mixture and stir until batter is just moistened (don't overmix)! Fold in chocolate chips.
Pour the batter into the loaf pan and distribute evenly. Place in centre of the oven and bake for approximately 50 minutes. When a toothpick comes out clean, your banana bread is done!