Start by placing the chicken breasts between two pieces of plastic wrap.

Use a meat mallet or rolling pin to gently pound them to an even thickness.

In three shallow bowls, place the flour in the first, beaten eggs in the second, and a mix of breadcrumbs and Parmesan cheese in the third.

Sprinkle salt, pepper, and garlic powder over the chicken.

Dip each chicken breast first in flour, then in egg, and finally in the breadcrumb mixture.

Heat olive oil in a large skillet over medium heat.

Add the breaded chicken to the skillet in batches, cooking until golden brown on both sides, about 4-5 minutes per side.

Preheat your oven to 400°F (200°C).

Place the cooked chicken breasts in an oven-safe dish, spoon marinara sauce over each piece, and sprinkle with mozzarella cheese.

Bake in the preheated oven for about 15 minutes, or until the cheese is melted and bubbly.