Pat the chicken tenders dry and season with one teaspoon of salt and black pepper. Set aside.
Stir the panko breadcrumbs, salt, garlic powder, smoked paprika and 1 teaspoon of salt together in a shallow bowl. (If adding Parmesan cheese, stir into this mixture.) Set aside.
Place the all-purpose flour in a separate shallow bowl and the whisked eggs in a third shallow bowl. You should have 3 bowls prepared: one bowl with the panko breadcrumb mixture, one with the all-purpose flour, and one with the whisked eggs.
Dip each chicken tenderloin into the all-purpose flour and then into the eggs and finally into the panko breadcrumb mixture. Make sure each tenderloin is well coated on both sides in each step.
Preheat the air fryer to 330°F.
Lightly spray each chicken tenderloin with cooking spray and then place them in the air fryer basket to cook for 8-10 minutes or until the internal temperature reaches 165°F.
Do not overcrowd your air fryer. You want a little space between each chicken tender. I cooked mine in 3 separate batches.
Top with minced parsley, optional, and serve warm.