Mix the tomatoes, cucumber, basil, mint, parsley, olive oil, vinegar, salt and pepper in a bowl while the quinoa cooks.
While the quinoa is still warm, stir it into the tomato cucumber mixture. Mix until everything is evenly distributed, and taste the seasoning level. Add more salt, pepper or vinegar if desired.
Serve warm or cold with feta if desired.
Notes
This recipe is really felxible. I’ve even quadupled it to feed a crowd. Just taste the seasoning level before serving!