Split hot dog buns lengthwise. Smear the Italian dressing down the middle of each piece of bun. Smear butter down the middle of each slice. Sprinkle with Italian seasoning mix, then mozzarella. Top with shakes of parmesan, romano, and oregano. Bake in toaster oven for approximately five minutes, broil for an additional minute to brown. Cut, and serve with spaghetti or pizza sauce.