Cook pasta according to package directions, drain and set aside to cool.
Pat chicken dry and season chicken with greek seasoning, garlic salt, and pepper. Heat a large skillet over medium high heat and add 2 tbsp olive oil, the the oil heat for 1 minute.
Add chicken and cook 5 minutes on each side. Set aside to cool, then slice chicken.
In a large bowl add cooked pasta, chicken, tomatoes, zucchini, red pepper, feta cheese, and kalmata olives. Mix to combine well.
In a small bowl to make dressing whisk avocado oil, lemon juice, red wine vinegar, oregano, and minced garlic. Store in an airtight container until ready to serve salad. Then pour over pasta and mix well. Garnish with parsley and more greek seasoning if desire.