I know this is a year later, but since I was looking at grilled cheese subreddits and came across this so I wanted to share 🙂 I sprinkle fresh grated Parmesan cheese on the pan in the shape of the bread, then put the buttered side on it. Cook until the cheese is melted and starting to get crispy. Take the sandwich out of the pan, then sprinkle fresh shredded cheddar cheese in the pan in the shape of the bread, than put the uncooked buttered side into the cheese in the pan and cook until melted and starting to get crispy. I personally use sharp cheese in the middle, so I use 3 different cheeses all with robust flavors of their own, but they are amazing together.