In season now: the humble onion by The MouthPosted onJanuary 21, 2017July 21, 2017 Here are some of the ways that onions are being served in Paris restaurants. Click any photo (or hover over it) to read the caption and learn where the dish is from. At Le Cinq: a modern take on onion soup Onion tart Sweet onion gratin At Champeaux: onion soup