Cook quinoa as directed on package. Set aside to cool.
While quinoa cooks, peel cucumber and cut tomato, removing the seeds. Finely chop the cucumber, tomato, red and green onions, parsley, and mint.
Once quinoa has cooled, add the vegetables, olive oil, lemon juice, vinegar, and chopped pecans; toss to combine. Serve with sliced apples on the side.