I LOVE an Italian meatball sandwich or a Vietnamese banh mi but putting both together sounds disgusting.

DUC — Xe May, New York City
This may not be the only banh mi on the list, but this one at new East Village sandwich spot Xe May takes the cake by going half Vietnamese, half Italian, for perhaps the craziest meatball sub ever created. Grilled meatballs are covered in house-made tomato sauce and provolone, but finished with the full banh mi treatment: fresh cilantro, pickled carrots, daikon, cucumbers and chile mayo, all served on a crispy baguette