Marinate the Chicken: In a bowl, whisk together olive oil, oregano, garlic powder, salt, and pepper. Add the chicken breasts and coat well. Let marinate for at least 30 minutes (or overnight for better flavor).
Cook the Quinoa: In a medium saucepan, bring the chicken broth (or water) to a boil. Stir in the rinsed quinoa, reduce heat to low, cover, and simmer for 15 minutes, or until the liquid has been absorbed. Fluff with a fork and set aside to cool.
Cook the Chicken: Preheat a grill or skillet over medium-high heat. Grill or cook the marinated chicken for about 6-7 minutes on each side, or until fully cooked (internal temperature reaches 165°F). Remove from heat and let rest for 5 minutes before slicing.
Prepare the Salad Components: In a large mixing bowl, combine diced cucumber, cherry tomatoes, red onion, feta cheese, and olives. Drizzle the lemon juice over the salad and toss gently to combine.
Assemble the Bowls: Divide the cooked quinoa among meal prep containers. Top with sliced chicken and add the cucumber-tomato salad on the side. Garnish with chopped parsley.
Store: Allow to cool before sealing the containers. Store in the fridge for up to 4 days.
Notes
For serving, place the salad on top of the quinoa and chicken or keep it separate in small cups for added freshness during the week.