Preheat a griddle or a large nonstick skillet. Set to medium heat and place the butter on the griddle (or in the skillet) to melt. Finely chop the parsley.
Once the butter melts, make sure to spread it evenly around the pan and place two slices of bread on top of the butter. Add on all the cheeses onto the bread and sprinkle the top with parsley. Top with the other pieces of bread and then cover the grilled cheese with a lid or another pan to trap in the heat. (To steam the cheese and help it cook all the way through.)
Let each side cook for about 2 minutes. Making sure that when you flip the sandwiches, you move the second slices of bread around in the melted butter.
Once the bread is golden-brown and the cheese is melted, take the sandwiches off the heat and serve them up warm!
Notes
Get a little fancy with it and try out other cheese combinations!