Avocado adds luscious richness to this bright, citrusy chicken salad. Be sure to toss the ingredients gently so the avocado doesn't blend in completely.
In a small bowl, stir together chicken, celery, mayonnaise, green onion, parsley, lemon juice and black pepper. Add Parmesan cheese, lemon zest and garlic. Toss gently to combine. Add avocado before serving. Gently toss to combine.