01 - In a medium saucepan, combine rinsed quinoa, water, and 1/2 teaspoon salt. Bring to a boil, then reduce to a simmer, cover, and cook for 15 minutes until water is absorbed. Remove from heat, fluff with a fork, and allow to cool to room temperature.
02 - Whisk together olive oil, lemon juice, minced garlic, dried oregano, salt, and black pepper in a small bowl until well combined.
03 - In a large mixing bowl, combine cooled quinoa, cherry tomatoes, diced cucumber, diced red bell pepper, chopped red onion, sliced Kalamata olives, fresh parsley, and crumbled feta cheese.
04 - Pour the prepared dressing over the salad mixture and toss gently to ensure even coating of ingredients.
05 - Taste the salad and adjust seasoning if necessary. Serve immediately or refrigerate for 30 minutes to enhance flavors.