A. Poulain

You can reserve for lunch at 11:30 and dinner at 18:30. The menus are the same. They do offer a Menu Degustation for about 90 euros. If you choose not to take that then by all means do order their most important dishes. They are the egg, the lamb chops with the puree, and the souffle.

The Paris Visite card is not officially good for 24 hours but nor does it expire at midnight either. It's good through the end of service that night. That includes the trains which end around 01:00 but also the Noctambuses which run through the night. The Noctambus access falls into that lovely grey area of French rules. You could use your Paris Visite card just after midnight, through the day, and then again on the Noctambuses through the night. But for someone staying out at Roissy the card will effectively expire just before midnight with the last Roissybus and Roissyrail run. So the flight attendants will need two-day Paris Visite cards. But the Carte Orange holders can still ride the Noctambuses through the night.