John Amato, Jr. has taken over an old-school Jersey deli from his papa and uncles. John is the owner of Fiore's Home of Quality in Hoboken, an institution that's been around because 1903. Fiore's is known for its homemade mozzarella, as well as its Italian deli sandwiches including meats like mortadella, gabagool, and prosciutto. Remaining true to his family's initial dishes, John's approach is to keep things seeming like they carried out in the 50s: very same…