Le Mignon is a small, intimate steak frites restaurant, open 7 days a week, offering a good wine list, classic martinis and daily specials on starters and desserts prepared by chef Pat Marion. And don't miss an exclusive cocktail bar experience at the Negroni Room, Thursday to Sunday. Hidden in the heart of Old Montreal beneath Restaurant Mignon, the Negroni Room is a cocktail bar specializing in negronis and spritzes. It's open until 10 p.m. and features DJs every night. The atmosphere is hushed, warm and enchanting.