Below, I am including the names of several places not too far from the Marais that my Parisian foodie sources have been talking up recently. You can pull up more info about each using the internet to determine whether any are to your liking. It goes without saying that there are countless places where you can enjoy a memorable meal throughout the city. I hope that this list will help you get started in identifying little gems right in your back yard where you can get the most bang for your buck (or what the French refer to as a bon rapport qualité/prix):
Astier
44, rue Jean-Pierre Timbaud (11th arrondissement; métro: Parmentier)
01-43-57-16-35
Le Baron Rouge
1, rue Théophile Roussel (12th arrondissement; metro: Ledru Rollin)
01-43-43-14-32
Le Bistro Paul-Bert
18, rue Paul Bert (11th arrondissement; métro: Faidherbe-Chaligny)
01-43-72-24-01
Le Chateaubriand
129, avenue Parmentier (11th arrondissement; métro:Goncourt)
01-43-57-45-95
Le Clown Bar
114, rue Amelot (11th arrondissement; métro: Filles du Calvaire)
01-43-55-87-35
Le Grizzli
7, rue Saint-Martin (4th arrondissement; métro: Hotel de Ville)
01-48-87-77-56
Le Temps au Temps
13, rue Paul-Bert (11th arrondissement; métro: Faidherbe-Chaligny)
01-43-79-63-40
I also second (or third as it is) the recommendation for falafel from l'As du Falafel. Get it to go and enjoy it on the nearby Place des Vosges.
Cheers from the French Baguette
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French Baguette is on it again - searching for another perfectly delicious meal.