Preheat the oven to 325℉ and line a baking sheet with parchment paper.
In a large bowl, mix together the chopped nuts, oats, almond flour, chia seeds, cinnamon, and salt until evenly distributed.
Add the maple syrup and olive oil. In a small bowl, whisk the egg white until slightly frothy and broken up, about 1-2 minutes. Add the egg white to the granola mixture.
Stir the granola until well combined, then pour it onto the prepared baking sheet. Firmly press the mixture into an even slab ¼ to ½ inch thick.
Bake the granola for 30-35 minutes, until crisp and golden around the edges. To test it for doneness, open the oven and carefully pinch a bit of granola off of the pan. Let it cool. If you taste it and it's too soft, continue to bake until crisp to your preference.
Remove the granola from the oven and allow it to cool completely before breaking it up into pieces (the size is up to you).
Store the granola in an airtight container for 1-2 weeks.