01 - Preheat oven to 400°F. Lightly grease a 9x13-inch baking dish.
02 - Season chicken pieces evenly with salt and black pepper, then arrange in the prepared baking dish.
03 - Pour marinara sauce evenly over the chicken pieces.
04 - Sprinkle shredded mozzarella cheese over the sauce, then top with grated Parmesan cheese.
05 - In a bowl, combine panko breadcrumbs, melted butter, and dried Italian herbs. Stir until crumbs are coated evenly.
06 - Evenly spread the breadcrumb mixture over the cheese layer.
07 - Bake uncovered for 30 to 35 minutes, until the chicken is cooked through and the topping is golden brown.
08 - Allow to rest for 5 minutes before garnishing with chopped fresh parsley, if desired.