The Disapointment Burger.

Shake n' Burger in South Street Seaport. Cheaper than five guys but you could really tell. On the plus side I did spend the whole time eating it chatting to some random tour guide guy about America. He kept telling me how great his burger was and I didn't have the heart to tell him about how much better all the others were :p

Eating that giant slice of onion was amazing though :)