Preheat the oven to 400°F (200°C) and line a baking sheet with parchment or lightly grease it.
Place each chicken breast between two sheets of plastic wrap and pound with a meat mallet or rolling pin to about 1/4-inch thickness.
Drizzle the olive oil over both sides of the flattened chicken breasts and rub evenly; season both sides with Italian seasoning, salt, and pepper.
In a shallow bowl whisk together the milk and egg and season lightly with salt and pepper.
In another shallow bowl combine the bread crumbs, garlic powder, paprika, and grated Parmesan.
Dredge each seasoned chicken breast first in the egg mixture, letting excess drip off, then press into the breadcrumb mixture until fully coated.
Arrange the coated cutlets on the prepared baking sheet with space between them and bake for 15 minutes.
Flip each cutlet and bake an additional 5 minutes, or until golden brown and cooked through (internal temperature 165°F/74°C).
Garnish with chopped parsley and serve.