Start by preheating your oven to 400°F (200°C). Line a baking sheet with parchment paper to keep the chicken from sticking during baking. Pound or slice your chicken breasts into thin cutlets so they cook evenly.
Create a breading station with three shallow dishes. Fill one with all-purpose flour, the second with whisked eggs, and the third with breadcrumbs mixed with grated Parmesan cheese. Season your chicken with salt and pepper before you begin.
Dip each chicken cutlet first in the flour, shaking off any excess, then into the egg wash, and finally into the breadcrumb mixture. Press gently to ensure the breadcrumbs adhere to the chicken.
Heat olive oil in a skillet over medium-high heat. Cook the breaded chicken cutlets for about 3-4 minutes on each side until they turn golden brown and crispy.
Place your seared chicken on the prepared baking sheet. Spoon marinara sauce generously over each piece, then sprinkle shredded mozzarella cheese on top. Bake the chicken for 15-20 minutes, or until the cheese is bubbly and slightly golden.
Remove the Chicken Parmesan from the oven and sprinkle fresh basil leaves on top for a pop of color and flavor. Serve it hot with pasta, salad, or even garlic bread on the side.