Villaggio Tuna and Olive Toasties

Arrange some grated cheese and a few thinly sliced black olives onto a slice of bread, and grill for a few seconds until the cheese melts and turns light browh.  Drain and mash up a tin of tuna with some mayo, and a few sliced black olives.  Assemble your toastie with a slice of bread, the tuna/olive/mayo mix in the middle, and the one-sided cheese on toast on the top.