Cook the quinoa according to package instructions, adding a little salt to the water. Once the quinoa is cooked, let it cool to room temperature.
While the quinoa cools, add all of the vinaigrette ingredients to a small bowl or jar with a lid. Whisk or shake until combined.
Once the quinoa has cooled, pour it into a serving bowl, along with the remaining salad ingredients. Season with Celtic sea salt. Pour the vinaigrette over the salad and stir everything together until combined. Taste for seasoning, then serve or refrigerate until ready to serve.