In a medium saucepan, bring the chicken broth (or water) to a boil. Add the rinsed quinoa, reduce heat to low, cover, and let it simmer for about 15 minutes or until the quinoa is fluffy and the liquid is absorbed. Remove from heat and let it cool.
While the quinoa is cooking, season the chicken breasts with salt, pepper, and half of the lemon zest. Heat 1 tablespoon of olive oil in a skillet over medium heat. Add the chicken and cook for about 6-7 minutes on each side or until fully cooked. Once done, remove from the skillet and let it rest before slicing into bite-sized pieces.
In a large bowl, combine the mixed greens, halved cherry tomatoes, diced cucumber, chopped red onion, and crumbled feta cheese.
In a small bowl, whisk together the lemon juice, the remaining lemon zest, remaining olive oil, dried oregano, salt, and pepper to create the dressing.
Add the cooled quinoa and sliced chicken to the salad bowl. Drizzle with the dressing and toss gently until everything is well combined.
Garnish with fresh parsley before serving.
Notes
For added flavor, marinate the chicken in lemon juice and herbs before cooking.