In a medium saucepan, combine the rinsed quinoa with the vegetable broth. Bring to a boil over medium-high heat, then reduce to low, cover, and simmer for about 15 minutes until liquid is absorbed. Remove from heat and let stand covered for 5 minutes, then fluff with a fork.
While the quinoa is cooking, prepare the vegetables. In a large mixing bowl, toss together the halved cherry tomatoes, diced cucumber, diced red bell pepper, finely chopped red onion, sliced Kalamata olives, and crumbled feta cheese.
In a small bowl, whisk together the olive oil, lemon juice, dried oregano, and a pinch of salt and pepper to create a dressing.
Once the quinoa has cooled slightly, add it to the vegetable mixture. Drizzle the dressing over the top and gently toss to combine.
Fold in the chopped parsley for added freshness.
Taste and adjust seasoning with salt, pepper, or lemon juice as desired.
Refrigerate the salad for at least 30 minutes before serving to meld flavors.
Notes
For optimal flavor blending, refrigerate the salad for a minimum of 30 minutes before serving.