01 - Combine olive oil, minced garlic, dried oregano, smoked paprika, ground cumin, lemon juice, salt, and pepper in a bowl. Coat chicken breasts thoroughly with the marinade. Let sit at room temperature for at least 15 minutes to absorb flavors.
02 - Place rinsed quinoa, chicken broth, and salt in a saucepan. Bring to a boil over high heat. Reduce heat to low, cover tightly, and simmer for 15 minutes until all liquid is absorbed. Remove from heat and let stand covered for 5 minutes. Fluff with a fork and set aside.
03 - Preheat grill pan or skillet over medium-high heat. Remove chicken from marinade and place on hot surface. Grill for 6 to 7 minutes per side until internal temperature reaches 165°F and chicken is cooked through. Transfer to a cutting board and let rest for 5 minutes before slicing into thin strips.
04 - Whisk together extra-virgin olive oil, fresh lemon juice, honey, Dijon mustard, salt, and pepper in a small bowl until emulsified and smooth.
05 - Divide cooked quinoa evenly among four bowls. Arrange sliced grilled chicken on top along with cherry tomatoes, diced cucumber, red onion slices, Kalamata olives, and crumbled feta cheese. Drizzle with lemon dressing and garnish with chopped fresh parsley.
06 - Serve bowls immediately while chicken is warm, or allow to reach room temperature for a refreshing cold lunch option.