Preheat oven to 325℉. Line a large cookie sheet with parchment paper.
In a large mixing bowl stir together all the dry ingredients (oats, quinoa, spices, seeds, etc) EXCEPT the chocolate chips.
Add the maple syrup, melted coconut oil, tahini, and vanilla. Stir until everything is well combined. If it's too wet, you may need to add a handful more of oats.
Spread the mixture onto the prepared baking sheet in an even layer.
Bake at 300 F convection (325 F regular) for 20 minutes, then down to 275 F convection (300 F regular) for between 15-25 minutes. In the last 5-10 minutes of baking, evenly sprinkle the chocolate chips over the top of the granola, to get the chocolate melty without scorching it.
Remove from the oven. Let stand at room temp for 1-2 hours so it can cool and the granola clusters can set. Definitely let it cool completely before putting it in a storage container.
Store in a big ziploc or mason jar at room temp for 3-4 weeks.