Place quinoa in a large bowl; cover with water. Let stand 5 minutes; rinse well, and drain.
Bring broth to a boil in a large saucepan; stir in quinoa. Cover, reduce heat, and simmer 15 minutes or until liquid is absorbed. Uncover; fluff with a fork. Cool to room temperature.
Combine olive oil and next 5 ingredients (through sea salt) in a large bowl. Add cooled quinoa, tomatoes, and the remaining ingredients; toss well.