Toast the Pecans: Place the chopped pecans into a dry skillet over medium heat. Toast for 3 to 5 minutes, stirring frequently, until fragrant and golden brown. Remove immediately from the hot pan and let them cool completely.
Combine Salad Base: In a large mixing bowl, combine the shredded or diced chicken, dried cranberries, cooled toasted pecans, diced celery, sliced green onions, and fresh parsley.
Mix the Dressing: In a separate smaller bowl, whisk together the Greek yogurt, olive oil mayonnaise, fresh lemon juice, Dijon mustard, garlic powder, salt, and pepper until completely smooth.
Toss and Coat: Pour the dressing over the chicken mixture and use a large spatula to gently fold all the ingredients together until evenly coated.
Adjust Seasoning: Taste a small spoonful and adjust the seasoning with an extra pinch of salt, pepper, or lemon juice if desired.
Chill and Serve: Cover the bowl tightly and refrigerate for at least 30 minutes before serving to allow the flavors to blend beautifully.