In a saucepan, combine quinoa and vegetable broth. Bring to a boil, then reduce the heat, cover, and simmer for about 15 minutes until the quinoa is cooked and the liquid is absorbed.
Once cooked, fluff the quinoa with a fork and let it cool to room temperature.
In a large mixing bowl, combine the halved cherry tomatoes, diced cucumber, chopped red onion, sliced Kalamata olives, crumbled feta cheese, and chopped parsley.
In a separate small bowl, whisk together the olive oil, lemon juice, dried oregano, and season with salt and pepper.
Add the cooled quinoa to the vegetable mixture and pour the dressing over the top. Gently toss everything together to combine evenly.
Taste and adjust seasoning if necessary.
Let the salad sit for at least 15 minutes for the flavors to meld before serving.
Notes
Serve in a large bowl or individual cups for a colorful presentation.