Yes, you can make these quinoa protein bars less sweet by reducing the amount of chocolate chips. Try melting a few and drizzling them on the mixture. Alternatively, you can skip the chocolate-melting step and just sprinkle a few chocolate chips on top or fold them in with the mix. Another way to reduce the sweetness is to decrease or omit the maple syrup or honey. If you do this, you may need to increase the nut or seed butter to add more cohesion for the ingredients to bind together. Additionally, you can experiment with using chopped dates instead of maple syrup or honey, since dates have some stickiness to them.