Prepare the Chicken Cutlets: Season the chicken cutlets with salt and pepper on both sides.
In a shallow bowl, beat the egg and add paprika, mixing well. Dip each chicken cutlet into the egg mixture, ensuring it is well coated.
Coat with Panko: In another shallow bowl, place the Panko breadcrumbs. Take each chicken cutlet from the egg mixture and coat it evenly with Panko breadcrumbs, pressing gently to adhere.
Cooking in the Air Fryer: Preheat the air fryer to 400°F (200°C) for 3 minutes. Place the breaded chicken cutlets in the air fryer basket in a single layer, ensuring they are not overlapping. Lightly spray the top of the chicken cutlets with olive oil spray.
Cook in the air fryer for 12-15 minutes, flipping halfway through, until the chicken is cooked through and the breadcrumbs are golden brown and crispy.
Serving: Once cooked, remove the chicken cutlets from the air fryer and let them rest for a few minutes. Serve the Weight Watchers Chicken Katsu hot, garnished with a squeeze of fresh lemon juice if desired.