Prep the Oven: Preheat to 325°F and line a large baking sheet with parchment paper.
Texture Hack: Mix all nuts, seeds, and oats in a bowl. Take ⅓ cup of this mix and pulse it in a food processor until you have coarse chunks. This "meal" helps the granola stick together better.
Combine: In a large bowl, whisk the egg white until it’s slightly frothy, this is your secret "glue" for clusters. Add the honey, melted coconut oil, vanilla, and lime zest.
Incorporate: Pour the wet mix over the dry ingredients (including the pulsed meal, shredded coconut, cinnamon, salt, and collagen). Mix until everything is evenly damp.
The Press: Spread the mixture onto the baking sheet. Use another piece of parchment or a spatula to press the mixture down firmly into a thin, uniform rectangle. The tighter you press, the better the clusters.
Bake: Bake for 15-20 minutes. Keep a close eye on it, because of the coconut and seeds, it can go from golden to burnt quickly.
The Cooling Rule: This is the most important part, Cool completely before breaking it apart. It will be soft when it comes out but will crisp up as the coconut oil and egg white set.