When you walk through the wonderful neighborhood of the Marais – maybe from Place de la Bastille, crossing Place des Vosges (always worth a detour), you will find a lot of good restaurants of various kinds. I myself normally don’t go to classy restaurants while travelling; it costs me simply to much time. A good alternative in the Marais is Chez Marianne, a nice small restaurant in a sidestreet. You can sit outside and if it is too crowded – they also got a comptoir for food to take away.
2 Rue des Hospitalières Saint-Gervais