By Evan Bleier Reopened in March on New York City’s Lower East Side following a two-year hiatus, Una Pizza Napoletana has wasted no time in returning to form and was just named the top pizzeria in the U.S. by Italian website 50TopPizza. According to the site, its anonymous rankers spent a year dining at pizzerias around the country in order to come up with 50 finalists, and Una Pizza Napoletana came out on top. “The criteria for assessment?” per the site. “The most important is the quality of the dough and raw materials used for the toppings. The service, the wine and beverage lists and, in ge…