Preheat oven to 425 degrees F. Line a baking sheet with parchment paper then place a wire cooling rack on top and lightly coat with nonstick cooking spray.
In a shallow bowl, whisk together egg, oil, milk, parsley, and salt.
In another shallow bowl, mix together all of the coating mixture ingredients (parmesan cheese, panko, breadcrumbs, salt, pepper, garlic powder, onion powder, and paprika).
Dip a few chicken pieces in the egg mixture at a time. Remove each piece of chicken with a fork to get rid of any excess egg coating. Transfer to the panko mixture and toss until each chicken piece is coated.
Place the chicken nuggets on prepared baking sheet and bake for 25 minutes. If you check the internal temperature with a thermometer, it should register at 165 degrees or above. Serve the chicken nuggets warm and serve with you favorite dipping sauces. Enjoy!