Preheat oven to 425°F. Line a baking sheet with parchment paper and lightly grease with olive oil.
Season both sides of the chicken with salt and black pepper.
Set up three breading stations:
Bowl 1: flour
Bowl 2: egg and water, whisked together
Bowl 3: panko breadcrumbs, parmesan cheese, parsley, garlic powder, onion powder, and paprika
Dredge the chicken in flour, then egg, then breadcrumb mixture, pressing firmly so the coating adheres well.
Place on the baking sheet and lightly spray or drizzle with olive oil.
Bake for 18–22 minutes, flipping halfway through, until golden brown, crispy, and the internal temperature reaches 165°F.
Let rest for 5 minutes before slicing.