Oven-Fried Buttermilk-Mustard Chicken Thighs with Panko

low-fat buttermilk 4 tsp Dijon mustard 1 tbsp honey Sea salt and freshly cracked pepper, to taste 6 boneless, skinless chicken thighs, trimmed of any fat 1 cup of Italian seasoned panko crumbs 1 tbsp Parmesan cheese, grated