Mussels are always available and in-house, if we are open (unless the very rare occasion happens & we sell out of them).. As of right now, I have not been told about January 1st, but we usually are closed for lunch on Christmas Day and New Year's Day until the dinner shift begins at 5PM.
Not sure if they are open..high probability. I have been there a number of time and they always had mussels. Contact the restaurant to be sure.
Thanks! Your answer is awaiting moderation.