Yaya Mas Greek Kuzina brings authentic Greek kitchen and Athenian Coffee culture to Streeterville, steps from the Magnificent Mile and Water Tower Place at 46 E Chicago Ave. Open late with real late night food until 5AM — proper Greek cuisine, not bar food — plus Greek breakfast, brunch, lunch, and dinner all day. Hand-carved gyros, souvlaki, spanakopita, moussaka, fresh-baked loukoumades, baklava, and bougatsa. Specialty Greek coffee, freddo cappuccino, and freddo espresso. Full-service Greek catering for corporate events, weddings, and private parties across Chicago — plus dine-in, takeout, delivery, and private dining. Greek-owned and Athens-rooted, ingredient-driven, recipe-faithful — bringing Athens to downtown Chicago. Business Hours: Mon: 08:00 - 00:00 Tue: 08:00 - 00:00 Wed: 08:00 - 00:00 Thu: 00:00 - 05:00, 08:00 - 00:00 Fri: 00:00 - 05:00, 08:00 - 00:00 Sat: 00:00 - 05:00, 09:30 - 00:00 Sun: 00:00 - 05:00, 09:30 - 00:00