Sorry if this is redundant but I searched past posts & couldn't find the answer. I am looking for a place where we could walk in without a reservation and order a light dinner-perhaps just onion soup & a glass of wine. I'm sure there are many opinions about who makes the very best traditional onion soup in Paris, but if I could find one really, really good one . . . you know, the kind that tastes of the deep complexity of the meat stock, the high quality slowwww simmered onions, the good bread, the realllly good cheese gooey on top, not so salty that my hands & feet puff up like a blowfish afterward. Mmmmmmm . . . So maybe not necessarily the very best in Paris (since I'm looking for a casual situation), but maybe one of the best? One of the pleasures of visiting in the off season on a cold autumn evening!