Celebrate National Fast Food Day with Dim Sum at Home! Did you know November 16th is National Fast Food Day? In honor of this deliciously fun day, we want to introduce popular fast snack and meal items from Japan. Frozen pre-made gyoza, shumai, and harumaki (spring roll) can be prepared in no time! Just steam, pan fry, deep fry, or even microwave and serve. Enjoy tasty and juicy dim sum in a matter of minutes.