01 - Combine olive oil, garlic, oregano, smoked paprika, cumin, lemon juice, salt, and pepper in a bowl. Coat chicken breasts thoroughly in marinade and let sit for at least 15 minutes.
02 - Bring quinoa, chicken broth, and salt to a boil in a saucepan. Reduce heat to low, cover, and simmer for 15 minutes until all liquid is absorbed. Fluff with a fork and set aside.
03 - Preheat grill pan or skillet over medium-high heat. Grill chicken for 6-7 minutes per side until cooked through and internal temperature reaches 165°F. Let rest for 5 minutes, then slice thinly.
04 - Whisk together extra-virgin olive oil, lemon juice, honey, Dijon mustard, salt, and pepper in a small bowl until emulsified.
05 - Divide cooked quinoa among four bowls. Arrange sliced chicken, cherry tomatoes, cucumber, red onion, olives, and feta on top. Drizzle with dressing and sprinkle with fresh parsley.
06 - Serve immediately while warm, or allow to reach room temperature for a refreshing cold option.