Preheat oven to 400 F. Line rimmed half sheet pan with parchment paper; set aside.
In shallow dish or pie plate, combine breadcrumbs, Italian seasoning and 1/4 cup Parmesan cheese, stirring with fork until blended. Pour melted butter in separate shallow dish or pie plate.
Working with one chicken thigh at a time, dip each side in melted butter to coat. Press butter-soaked chicken into breadcrumbs, turning to coat well on both sides. Place breaded chicken on prepared baking sheet. Repeat with remaining chicken thighs.
Drizzle remaining melted butter over breaded chicken. Bake 8 minutes. Turn chicken over and bake 7 minutes to crisp other side.
Briefly remove chicken from oven. Spoon two tablespoons pasta sauce over each chicken thigh. Sprinkle remaining Parmesan cheese evenly over chicken. Return chicken to oven and continue baking 5 minutes, or until cooked through.
Serve Baked Parmesan Chicken over cooked spaghetti topped with additional pasta sauce.