Skillet Chicken in Roasted Pepper Garlic Butter Parmesan Sauce

 lbs. (900g) boneless skinless chicken breasts or 3 medium chicken breasts

to 2 cups (300 to 450ml) roasted pepper sauce

garlic, minced

Italian seasoning

– 3 tablespoons olive oil

Salt and freshly cracked pepper,

 cup unsalted butter, diced

heaping tablespoons grated Parmesan cheese, plus more for garnish

of Cayenne Pepper, optional

Fresh chopped parsley or basil, for garnish