In a medium saucepan, bring 2 cups of water or vegetable broth to a boil. Add the rinsed quinoa, reduce heat to low, cover, and simmer for about 15 minutes or until all the liquid is absorbed. Remove from heat and let it sit, covered, for 5 minutes before fluffing with a fork.
In a large mixing bowl, combine the halved cherry tomatoes, diced cucumber, diced bell pepper, chopped red onion, Kalamata olives, feta cheese, and chopped parsley.
In a small bowl, whisk together the olive oil, lemon juice, dried oregano, salt, and pepper.
Add the cooked quinoa to the mixing bowl with the vegetables and cheese. Drizzle the dressing over the quinoa salad and toss gently to combine.
Taste and adjust seasoning as necessary. You may add more lemon juice, salt, or pepper according to your preference.
Chill the salad for at least 30 minutes to allow the flavors to meld together before serving.
Notes
Serve the salad in large, shallow bowls. Garnish with extra lemon wedges and a sprinkle of parsley for an inviting touch. A drizzle of olive oil over the top can add a nice sheen.