Place the oats in a food processor and pulse a few times to begin breaking up the oats. Add the cooked lentils, almond flour, onion, garlic, salt, chilli and oregano. Pulse a few more times until the mixture is combined but the lentils still have texture. If you can’t form a ball with the mixture then add a little water if it is too dry and some rolled oats if it’s too wet. The right consistency will allow you to form a ball that holds it’s shape. Place this mixture in the fridge for several hours.