Cook the pasta according to package instructions.
While pasta cooks, season and grill the chicken thighs.
Allow chicken to rest before slicing.
Prep the vegetables and olives while chicken and pasta cool.
In a large bowl, combine cooked pasta, chicken, and vegetables.
Whisk together olive oil, red wine vinegar, oregano, and seasonings for dressing.
Pour the dressing over the salad, tossing to combine.
Garnish with feta cheese and parsley before serving.