In a separate bowl, mix scallions, cucumber, parsley, and cilantro. Add cherry tomatoes and mint, if using.
*Any color quinoa will work; tri-color quinoa makes the dish extra enticing and colorful
**Persian cucumbers have less seeds and seem to be less wet inside, making them great for a dish that calls for finely diced cucumbers.
***If the quinoa becomes overcooked and is stuck to the bottom of your pan, let it sit covered for 5 minutes, allowing the steam to un-stick it.