Marinate the Turkey: In a large bowl, combine the diced mango, diced red and yellow bell peppers, olive oil, garlic powder, onion powder, smoked paprika, cayenne pepper (if using), salt, and pepper. Mix well to form a marinade. Add the turkey tenderloins to the bowl, ensuring they are well-coated in the marinade. Let them marinate for at least 30 minutes in the refrigerator to absorb the flavors.
Preheat the Air Fryer: While the turkey is marinating, preheat your air fryer to 400°F (200°C) for about 5 minutes.
Prepare the Coating: In a shallow dish, spread the panko breadcrumbs evenly. If you prefer a crunchy texture, you can season the panko with a sprinkle of salt and pepper.
Coat the Turkey: Remove the turkey from the marinade and allow excess marinade to drip off. Dredge each turkey tenderloin in the panko breadcrumbs, pressing slightly to ensure the crumbs adhere well to the turkey.
Air Fry the Turkey Tenders: Place the coated turkey tenders in the air fryer basket in a single layer. Spray the tops lightly with cooking spray for extra crunch. Air fry at 400°F (200°C) for 12-15 minutes, or until the tenders are golden brown and reach an internal temperature of 165°F (74°C). Flip them halfway through the cooking time to ensure even crispness.
Garnish and Serve: Once cooked, remove the turkey tenders from the air fryer and let them rest for a few minutes. Garnish with fresh chopped cilantro before serving. Pair them with a side of mango salsa or a crisp salad for a delightful meal!