Roll each roll into a 6-inch rope. Place butter and cheese in shallow bowls. Dip each rope into butter and then into Parmesan cheese.
Place breadsticks on an 11x17-inch sprayed baking sheet in 2 rows of twelve each. Sprinkle with garlic salt, if desired. Cover with plastic wrap.
Let rise until double in size. Remove wrap and bake at 350°F 15-20 minutes or until golden brown.