Secret Pizza is one of Cosmo's best "hidden gems." It's located on the third floor, tucked in a long hallway. May be hard to locate to if you're too intoxicated. The lines get really long at night as everyone is eager to cure their late night munchies, many of them arriving straight from the clubs.
They offer New York style, thing crust pizza with the usual toppings. Slices start at $5 and +$.50 per topping. My favorite toppings are the sausage and ricotta.
Pretty solid pizza and reasonably priced.