You can use any kind of bread. Cuban bread just works best for this.
As far as cheese goes, I say that white English cheddar works the best, but parmesan or goat cheeses are great.
If you have a panini maker, use it for this . It will work much better than an oven or broiler. I use an oven because I do not have a panini maker and I never have. I don't know why.
Well, oven, broiler, panini maker, or whatever you cook this in, this will turn out great.
Makes 2 sandwiches
4 thin slices Cuban bread or French bread
1/4 cup thinly sliced (or crumbled) cheese
1 tbsp butter or olive oil
Melt butter in a not stick skillet. Place slice of bread on the hot skillet.
Then lay down your cheese.
Bake in an oven preheated to 350°f, for 10 minutes or until cheese is melted and top is lightly browned.
Let cool for awhile.