Kathy's Chicken Parmesan

4 boneless, skinless chicken breasts, or 8 chicken tenderloins
1 1/2 c. panko bread crumbs, can also use Italian seasoned panko
1 c. fresh grated parmesan cheese
1 c. mozzarella cheese, shredded
3 T. Italian seasoning
2 1/2 c. marinara sauce ( I used Del Monte green pepper and mushroom)
1 1/2 t. salt
pepper to taste

Spray  a 8x8 dish. Spread sauce on bottom. Add layer of mozzarella and seasonings. Season both sides of chicken with salt and pepper to taste. Place chicken over mozzarella.  Combine panko, parmesan, and Italian seasonings. Sprinkle over chicken. Do not layer it on thick. Bake at 375 for 45 minutes to one hour until chicken is done. Larger/thicker breasts will probably have to be cooked for longer than an hour. I cooked mine for an hour and 20 minutes and checked it with a meat  thermometer before serving. Serve over spaghetti and with a side salad.