Season the chicken breasts with salt and black pepper.
Place them between two sheets of plastic wrap and gently pound them until they’re about 1/2 inch thick.
Set up a breading station with three shallow dishes.
Fill one with flour, another with beaten eggs, and the third with breadcrumbs mixed with Parmesan cheese.
Dredge each chicken breast in flour, then dip in the beaten eggs, and finally coat in the breadcrumb mixture.
Ensure they are evenly coated.
Heat olive oil in a skillet over medium-high heat.
Fry the breaded chicken for about 2-3 minutes on each side until golden brown.
Place on a wire rack to remove excess oil.
Preheat your oven’s broiler.
Spoon tomato sauce onto each piece of chicken, top with slices of mozzarella, and broil until the cheese is melted and bubbly.