Nothing to do with a giant military offensive feast: Tet, Vietnam
What: Nothing tickles our pickle like a good hybrid (like this waffle sammie, this car and pretty much any pastry combo), but Vietnam’s Lunar New Year, which marks the arrival of Spring (in January or February, natch), takes the cake. Roll Thanksgiving, New Year’s Eve, Halloween, and your birthday week into one epic, compact celebration, and you're nearly at Tet.
Eat: In Vietnamese, to celebrate literally means “eat" Tet. A celebration-specific dish is Banh Chung, a square cake made of steamed rice, mung bean puree, and pork that's wrapped in a banana leaf and tied with red ribbon for good luck.