Season the chicken with salt and pepper. Crack the eggs in a medium bowl and whisk until beaten. Stir together the panko breadcrumbs, Parmesan, paprika, and garlic powder in a second bowl.
Dip the chicken in the eggs, rotating to evenly coat. Next, dredge chicken into the breadcrumb mixture to evenly coat, ensuring none of the chicken is exposed. Place on a wire rack and spray generously with the cooking spray.
Transfer the chicken to the air fryer and cook until golden brown and cooked through, 4 minutes per side. Remove from the air fryer and allow to cool enough to handle. Slice into thin strips.
While the chicken is cooking, whisk together the olive oil, lemon juice, Dijon mustard, salt, and pepper.
Serve the sliced chicken Parmesan over greens with the vinaigrette and shaved Parmesan cheese.
Notes
Storage: You can bread the chicken up to a day ahead of time and keep it covered in the fridge until you're ready to cook. The cooked chicken will keep well in an airtight container for up to 4 days in the fridge.