01 - Set air fryer to 400°F and preheat for 5 minutes.
02 - Arrange three shallow bowls: one with flour, one with whisked eggs and milk, and one with a mix of panko, Parmesan, garlic powder, paprika, salt, and pepper.
03 - Coat green beans in flour, shake off excess, dip in egg mixture, and then fully cover with the panko mixture.
04 - Place breaded green beans in a single layer inside air fryer basket. Lightly spray with cooking spray.
05 - Cook at 400°F for 10 to 12 minutes, shaking basket halfway through, until beans are golden and crisp. Prepare in batches as needed.
06 - Combine Greek yogurt, mayonnaise, lemon juice, Dijon mustard, minced garlic, salt, pepper, and chives in a bowl. Stir until smooth and adjust seasoning to taste.
07 - Enjoy green bean fries hot, accompanied by the prepared dipping sauce.