Prep the chicken by patting the breasts dry, then slice into evenly thick cutlets. This helps them cook through and crisp evenly.
Set up a breading station: whisk the egg in one shallow dish, mix breadcrumbs with grated parmesan, Italian seasoning, and a pinch of salt in another.
Dip each chicken cutlet first into the egg, letting the excess drip off, then coat with the breadcrumb mixture. Press gently to ensure the coating sticks.
Heat olive oil in a large skillet over medium-high heat. Add the chicken and cook for about 3–4 minutes per side, until the crust is golden and the chicken is nearly cooked through. Remove and set aside.
In the same skillet, add a splash more oil if needed and sauté minced garlic for about 30 seconds until fragrant. Pour in the marinara sauce and simmer briefly to meld the flavors.
Meanwhile, cook the pasta in salted boiling water until al dente, then drain. Reserve a small amount of pasta water in case you need to loosen the sauce.
Return the chicken to the skillet with the sauce. Spoon some sauce over the chicken, top with mozzarella, and reduce the heat to low. Cover and let the cheese melt, about 2–3 minutes.
Toss the drained pasta with a portion of the warm sauce, then plate it. Top with the saucy chicken cutlets, spoon extra sauce over the pasta, and finish with a sprinkle of fresh herbs if desired.
Serve hot and enjoy the comforting harmony of crispy chicken, melty cheese, and saucy pasta in every bite.