Preheat oven to 400ºF.
Place the bread halves onto a baking sheet and toast them in the oven until golden brown, about 5 minutes.
As soon as the bread comes out of the oven, rub the garlic cloves over each piece of bread.
Sprinkle the two cheeses evenly over both halves then transfer the baking sheet back into the oven to melt the cheese, 3-4 minutes.
Serve immediately, garnished with fresh parsley.