I will be zooming through Paris on my way to the south on Bastille Day, and would like to know if anyone can suggest somewhere very close (no more than 5 minutes if possible) to Gare Montparnasse for an informal lunch with two discriminating friends. I will be very pushed for time (1 hour max), so service must be fast and reliable. Being able to book in advance would be helpful also. Interesting *and* good would be great, but I will quite happily settle for good.
I know that this is a very specific request and due to the date I may be limited by who will be open, but any suggestions would be much appreciated.