Prep the chicken. Pat the cutlets dry with paper towels.
Season both sides with salt, pepper, garlic powder, and onion powder. Let them sit for 5 minutes while you set up the coating station.
Make the coating. In one shallow bowl, beat the egg. In a second bowl, mix the Parmesan and high-protein breadcrumbs until well combined.
Coat the cutlets. Dip each cutlet in the egg, let the excess drip off, then press into the Parmesan-breadcrumb mixture.
Coat fully, pressing lightly so it sticks. Set on a plate.
Preheat and set up. Heat the oven to 400°F (200°C). Line a baking sheet with foil or parchment.
Lightly oil a wire rack and set it over the sheet if you have one—this helps keep the crust crisp on both sides.
Quick sear for flavor. Heat 1 tablespoon olive oil in a large skillet over medium-high. Sear the cutlets for 1–2 minutes per side, just until lightly golden. You’re not cooking through here—just building flavor.
Add a splash more oil if needed.
Bake to finish. Transfer cutlets to the prepared rack or baking sheet. Bake for 8–10 minutes, depending on thickness, until the internal temperature reaches 155–160°F (68–71°C).
Add sauce and cheese. Spoon a thin layer of marinara over each cutlet—don’t drown them. Top with mozzarella.
Return to the oven for 3–5 minutes, until the cheese melts and the chicken hits 165°F (74°C).
Broil for a golden top (optional). Switch to broil for 1–2 minutes to get bubbly, golden cheese. Watch closely to avoid burning.
Finish and serve. Let the chicken rest for 3–4 minutes. Sprinkle with fresh basil and red pepper flakes if you like.
Serve with extra warm marinara, a side of greens, or roasted vegetables. A squeeze of lemon brightens everything.