In the center of the passage of Galerie Vivienne is this proper salon de thé

You can see one of the menus here in chalk, typical French script, on the easel blackboard 

I love the floor tiles, the ambiance and the fare

You can sit here on the "terrace" in the galerie itself or inside the restaurant.  Both settings are enchanting and you will feel transported back about a hundred years. 

 A Priori Thé
35-37 Galerie Vivienne
75002, Paris