1. Preheat the oven to 350ºF and line a 9×13" baking dish with parchment paper.
2. Combine Dry Ingredients: In a large bowl, combine rolled oats, collagen powder, protein powder, walnuts, cinnamon, and salt. Stir to mix evenly.
3. Mix Wet Ingredients: In a separate small bowl, whisk together the melted coconut oil, applesauce, egg whites, maple syrup, and vanilla extract.
4. Pour the wet mixture into the dry ingredients and stir with a spatula until fully combined.
5. Fold in the grated carrot, making sure it’s evenly distributed.
6. Assemble & Bake: Transfer the batter to the prepared baking dish and press it down evenly. Bake for 20-25 minutes, or until set and lightly golden.
7. Remove from the oven and let cool in the pan for at least 15 minutes.
8. Use the parchment paper to lift the bars out of the pan and let them cool completely before slicing into 9-12 bars.
9. Serve & Enjoy: Sprinkle with flaky salt before serving, if desired.
10. Store individual bars in an airtight container or individually wrapped in the refrigerator for up to 5 days or in the freezer for up to 2 months.