Combine the quinoa with 1 ½ cups water in a small saucepan and bring to a rapid simmer, then lower the heat. Cover and simmer gently for 15 minutes, or until the water is absorbed.
Transfer the quinoa to a serving container to cool. If need be, speed up the cooling process by refrigerating for a while.
Once the quinoa is just warm, combine it with the remaining ingredients in the container and stir together. Serve at once.