Steps
1. In a bowl, combine olive oil, lemon juice, minced garlic, oregano, salt, and pepper.
2. Marinate the chicken breast in the mixture for at least 15 minutes.
3. Rinse quinoa under cold water and combine with water in a small pot; bring to a boil.
4. Reduce heat to low, cover, and simmer for 15 minutes or until water is absorbed.
5. Preheat grill or grill pan over medium heat.
6. Grill chicken for 6-7 minutes on each side until cooked through.
7. Fluff quinoa with a fork and mix in cherry tomatoes, cucumber, and parsley.
8. Serve grilled chicken alongside the quinoa salad.