Preheat oven to 350 F. Line a loaf pan with parchment paper, and set aside.
In a large bowl, combine the maple syrup, coconut oil, almond butter, and vanilla until smooth and incorporated.
Add in the oats, almond flour, collagen peptides powder, coconut flour, coconut sugar, and ground flax meal (if using). Stir the wet and dry ingredients together until the mixture resembles cookie dough.
Gently stir in the chocolate chips.
Scoop the batter into the prepared loaf pan, and pat it down into a single layer that reaches all sides of the pan.
Bake for about 20-25 minutes, or until the corners of the bars are lightly golden brown.
Allow to cool to room temperature, and then place in the fridge for 30 minutes to set.
Cut bars into squares. See the blog post above for storage tips.