Two wellknown japanese cafeteria, close to the Louvre and the Palais Royal. Gyoza and Lamen served all day long. The one Rue St Anne is more traditionnal, chiefs are cooking in front of you. Often packed, in case there is a long waiting line, go to the one Rue St Honoré, you will eat the same!
Chez Jeanette is a cool bar to hang out in located on the same street where I have lived since I was two years old. Many trendy young people hang out here everyday where one can listen to good music whilst sipping nice drinks.