In a medium bowl mix together the mashed avocado, greek yogurt, granulated garlic, onion powder, salt, and pepper.
Add chicken, red onion, and celery to the avocado mixture and stir until all ingredients are combined.
Squeeze in lime juice. Give it a taste, squeeze in the rest of the lime if needed. Taste for salt and pepper.
Enjoy in a wrap, pita, or on a bed of greens.