Preheat oven to 450°F. Spray a 9x9” pan with nonstick cooking spray.
Depending on the sizes of your chicken breasts, slice each longwise into 4-6 ounce pieces. Place breadcrumbs and parmesan cheese in a shallow dish and stir.
Place each chicken breast into the breadcrumb mixture to thoroughly coat both sides. Place in pan. Bake for 15-20 minutes, or until they start to look done and crispy.
Remove hot pan from the oven and top with pasta sauce and mozzarella cheese. Return to oven and bake an additional 5-10 minutes or until cheese is melted and chicken is cooked through. Serve over pasta, if desired. We also like to serve this with just a salad for a lower carb meal.