Prep the oven: Preheat to 425°F (220°C). Place a wire rack on a rimmed baking sheet and lightly oil the rack. This helps the chops crisp on all sides.
Pat dry: Blot the pork chops with paper towels. Dry meat browns better and helps the coating stick.
Make the wet mix: In a shallow bowl, whisk the egg, olive oil, Dijon, and lemon juice until smooth.
Mix the crust: In another shallow dish, combine Parmesan, breadcrumbs, garlic powder, onion powder, paprika, thyme, salt, and pepper.
Coat the chops: Dip each chop in the egg mixture, letting excess drip off.
Press into the Parmesan-breadcrumb mix, coating both sides and edges. Press firmly so the crust adheres.
Arrange for airflow: Place coated chops on the prepared rack. Leave space between them.
Bake: Cook for 18–22 minutes, depending on thickness, until an instant-read thermometer in the center reads 140–145°F (60–63°C).
Broil for crunch (optional): Broil 1–2 minutes to deepen the golden crust. Watch closely to avoid burning.
Rest: Transfer to a plate and rest 5 minutes.
The temperature will rise slightly, and juices will redistribute.
Serve: Finish with a squeeze of lemon and sprinkle of parsley. Pair with roasted green beans, a crisp salad, or quinoa.