Place quinoa and chicken stock in a medium sauce pan and bring to a boil. Turn heat down to low, cover the pot, and simmer until all the liquid has evaporated, about 20 minutes.

In the meantime, combine shallot, tomatoes, herbs, vinegar, lemon juice, and olive oil in a large mixing bowl. When the quinoa has finished cooking, add it to the bowl and toss all ingredients until well incorporated. Taste for seasoning, and add salt as necessary.