Large Group (work group) for Dinner in New Orleans
Yes. Mariza in the Bywater has two large high top tables that they usually use for communal seating. They've indicated that they're more than happy to reserve them for large groups. I think each table seats around 16 - 20. Prices aren't bad and the food is very good indeed.
You'd do well to search for this topic, it's been asked and answered a bunch of times. That you're this late planning and in the middle of holiday party season will not make your task any easier though.