Preheat oven to 275 and line a regular sized to large baking sheet with parchment paper.
Mix the oats, walnuts, pecans, flaxseeds, and coconut in a large bowl.
Mix the maple syrup, melted coconut oil, cinnamon, and vanilla in a small bowl.
Pour the liquid mix over the large bowl and mix with your hands until well combined.
Add the mixture to a lined baking sheet and press it all down so that it is compact.
Cook for 45 minutes to 1 hour until golden brown. Mine takes 1 hour, but pan sizes vary.
Take out of the oven and let it sit as is for 15 minutes. Then break it up with your hands a bit and continue to cool completely before eating and storing in an airtight container for up to 1 week.