Start by pounding the chicken breasts to an even thickness. This ensures each piece cooks evenly and stays juicy.
Dip each chicken breast in flour, then egg, then the breadcrumb mixture. Press lightly to coat well so the crust sticks during baking.
Place the breaded chicken on a parchment-lined baking sheet and bake at 425°F for 30 minutes. The chicken should be golden and crispy.
After baking, spoon marinara sauce over each cutlet and top with shredded mozzarella. Broil for 2 minutes until the cheese melts and bubbles.
Let the chicken rest for a few minutes before serving. This helps the cheese set slightly and keeps the chicken juicy.