Make the dressing by combining vinegar, garlic cloves, maple syrup, dijon and sea salt in a blender and processing until well combined. With the blender running, add olive oil in a steady stream.

In a large bowl combine quinoa, red onion, tomatoes, olives, basil, and mozzarella. Toss with the desired amount of dressing. Transfer to serving bowl and drizzle with balsamic reduction.