Prepare the chicken
Pat the chicken dry with paper towels. If the pieces are thick, pound them gently until they are even in thickness. Season both sides with salt and pepper.
Set up the coating station
Place the flour in one shallow bowl. In a second bowl, whisk the eggs and milk together. In a third bowl, mix Parmesan, breadcrumbs, garlic powder, onion powder, Italian seasoning, salt, and pepper.
Coat the chicken
Dip each chicken breast into the flour, then the egg mixture, then the Parmesan breadcrumb mixture. Press the coating onto the chicken so it sticks well.
Heat the skillet
Warm olive oil in a large skillet over medium heat. The oil should shimmer but not smoke.
Sear until golden
Add the chicken and cook for 3 to 5 minutes per side, until the crust is golden brown. Work in batches if needed so the pan is not crowded.
Finish cooking
Continue cooking until the chicken reaches an internal temperature of 165°F. If the crust browns before the center is done, transfer the chicken to a baking sheet and finish in a 375°F oven for 8 to 12 minutes.
Rest before serving
Let the chicken rest for 5 minutes before slicing. This keeps the juices inside and helps the crust stay crisp.
Garnish and serve
Sprinkle with fresh parsley and serve with your favorite sauce or sides.