Think there's nowhere left in Paris that serves boeuf bourguignon, coq au vin, and frogs' legs in a timeworn bistro setting? Then you haven't been to Chez René, whose specialty -- aside from robust Burgundian classics -- is reassuring continuity. Be sure to enjoy some of the Mâconnais and Beaujolais wines with your meal. The prix-fixe menu costs EUR29 at lunch, EUR40 at dinner. Reservations essential. Métro: Cardinal Lemoine.