Line an 8-inch square baking pan with enough parchment so that it hangs over each side. Place almonds and cashews in a food processor and process until both are ground well but not to the point where they’re too fine and sandy, about 20 seconds. Pour chopped nuts into a bowl and set aside.
Put dates in the food processor and process continuously for 1-2 minutes (depending on your dates), or until they begin to come together in one mass. Add coconut, oats, half of the chopped nut mixture, cacao powder, honey, coconut oil, cardamom, ginger and salt. Process just until the mixture comes together. It can have a tendency to all get stuck on one side of the food processor and you want to make sure the ingredients on the very bottom are getting incorporated too, so scoop the sides and bottom as necessary. You’ll process for about 3 minutes.
Turn the mixture into a medium bowl and add the quinoa flakes and other half of nut mixture. I use my hands here to knead the “dough” and thoroughly incorporate the flakes and nuts. The “dough” shouldn’t be fully uniform—you want to see little bits of nuts and grains.
Scoop into the prepared pan. Use your hands or the back of a spatula to press down and create an even, firm layer. Refrigerate for at least 2 hours (or freeze for 45 minutes if in a hurry) — this will help firm them up so you can cut them easily.
When ready to slice, lift the bars right out of the pan by grabbing onto the overhanging parchment paper. Cut into small squares (I usually opt for about a 2 by 3” size). Refrigerate in an airtight container for up to 7 days. Alternatively, wrap individually in plastic wrap and freeze for up to 3 months.