Bring a medium pot of salted water to a boil and cook the orzo according to package directions until al dente, then drain and rinse with cold water.
Season the chicken breast with half of the sea salt and black pepper, then grill or pan-sear until the internal temperature reaches 165°F.
Allow the chicken to rest for 5 minutes before dicing it into small, bite-sized cubes.
In a large mixing bowl, whisk together the extra virgin olive oil, fresh lemon juice, dried oregano, and the remaining salt and pepper.
Add the cooled orzo, diced chicken, chickpeas, chopped cucumber, halved cherry tomatoes, and minced red onion to the bowl.
Toss all ingredients until thoroughly combined and coated in the dressing.
Gently fold in the crumbled feta cheese and chopped fresh parsley before serving.