quat·tro for·mag·gi
/quàt·tro/ /forˈmad.d͡ʒi/
Combination of four kinds of cheese, usually melted together. [ref]
Pizza is a dish of Italian origin consisting of a usually round, flat base of leavened wheat-based dough topped with cheese, and often various other ingredients, which is then baked at a high temperature, traditionally in a wood-fired oven. [ref]