Preheat your grill or grill pan to medium-high heat, ensuring it’s well-heated for optimal grilling.
In a small mixing bowl, combine the extra virgin olive oil, dried oregano, garlic powder, and a generous pinch of salt and black pepper. Whisk together to form a flavorful marinade.
Coat the chicken breasts evenly with the marinade, making sure they are well-covered. Allow the chicken to marinate for 15 minutes at room temperature to enhance the flavors.
Place the marinated chicken on the preheated grill. Cook for approximately 6-8 minutes on each side, or until fully cooked through, achieving an internal temperature of 165°F (75°C). Once done, remove the chicken from the grill and let it rest for 5 minutes to retain its juices.
While the chicken rests, prepare the tzatziki sauce: In a small bowl, mix the plain Greek yogurt, fresh lemon juice, and a touch of salt. Stir well until smooth and set aside to allow the flavors to meld.
Once the chicken has rested, slice it into thin strips for easy stuffing.
Warm the whole wheat pitas on the grill for about 1-2 minutes, or until they are heated through and slightly charred.
To assemble the stuffed pitas: Carefully open each pita pocket, and fill them generously with the sliced grilled chicken, halved cherry tomatoes, diced cucumber, thin slices of red onion, and a dollop of tzatziki sauce. Finish by sprinkling crumbled feta cheese and the chopped parsley on top.
Serve the stuffed pitas immediately, accompanied by additional tzatziki on the side for dipping, if desired.
Notes
Serve with extra tzatziki on the side for dipping.