The 15e is very residential, but has some nice (altough not « haute cuisine ») restaurants. I love la Cave de l’Os à Moelle, it is a « table d’hôtes » and it has a great atmosphere! Le Dirigeable, rue d’Alleray is an interesting bistro/gastro. Chen, rue du Théâtre, was one of the best (maybe the best/along with Vong in Les Halles) Chinese restaurants in Paris, but I don’t know how it evolved since the death of its owner/founder.

I haven’t been to Banyan in Paris (I think it was started by the same guy who made Asian and Blue Elephant), but tried Banyan in Lille, it is indeed a great Thai¨restaurant. There is another good Thaï restaurant in the 15e: Erawan (rue de la Fédération). Baan Boran, rue Montpensier, behind the Palais Royal, is also nice.

And finally, « Tanh Dinh (rue de Verneuil), is a very classy and « exclusive » vietnamese restaurant. Its owner, Mister Robert Vifian is so old, so old fashionned: a real and rare pleasure. Their food is great too!