I am a bit of a skeptic when it comes to Paris bistros. I have been disappointed too many times by the "in" places "discovered" by The New York Times or Bon Appetit to trust them, and even some of my trusted French bloggers have from time to time let me down.
However . . . I recently went with a former colleague to new but and well-publicized Le Servan, a totally simple but attractive, and now very chic, bistro in the 11éme arrondissement and had a really delightful meal, exactly what you want in this type of place. A small but well-conceived menu and a wine list to match. And reasonable prices, too. The place is run by two young sisters, one of whom is the companion of the chef of Septime, one of the really great bistros in Paris. While this probably helped to jump start the restaurant, it has its own identity and flair.
We shared an order of cockles in a light spicy bouillon that was a perfect pre-starter. Then I had a hot foie gras lacqué and my friend had perfectly cooked baby artichokes with lemon sauce. I continued with a marvelous duck breast, while A had a perfectly roasted chicken with cabbage. Our desserts, a blood orange tart and a Paris-Brest, were both excellent. The food is not gorgeous and not presented in an exciting way, so no photos. But so what? This is good food, at a reasonable price, and you should go. Just call in advance because it's usually full.
Le Servan, 32 rue Saint-Maur, Paris 11ème (Métro Voltaire, St-Amboise or Saint-Maur), 01 55 28 51 82.