01 -
Line a baking sheet with foil and brush with olive oil. Adjust oven rack to the second position from the top and preheat oven to 400°F.
02 -
Slice each chicken breast horizontally to create two even pieces. Place chicken in a gallon-sized zip-top bag in a single layer, seal, and pound to an even thickness using a meat mallet or rolling pin.
03 -
Remove chicken pieces from the bag and pat dry with paper towels. Season both sides evenly with kosher salt and ground black pepper.
04 -
Mix panko bread crumbs, parmesan cheese, dried oregano, garlic powder, 1/2 teaspoon kosher salt, and 1/2 teaspoon black pepper in a shallow dish. In a separate shallow bowl, whisk the egg until smooth.
05 -
Dip each chicken piece first into the whisked egg, then dredge in the panko mixture, pressing gently to adhere the coating. Arrange coated chicken on the prepared baking sheet.
06 -
Transfer baking sheet to preheated oven and bake for 15 minutes or until chicken is cooked through and juices run clear.
07 -
Flip each chicken piece. Spoon about 1/4 cup marinara sauce over each and top evenly with shredded mozzarella cheese.
08 -
Switch oven to broil setting. Return baking sheet to the oven and broil for 2 to 4 minutes until cheese is melted, bubbly, and edges are golden and crisp.
09 -
Remove pan from oven. Sprinkle with minced parsley if desired, and serve immediately for optimal flavor and texture.