Yaya Mas Greek Kuzina brings authentic Greek food to River North, Chicago. Located at 46 E Chicago Ave, we serve the best gyros in Chicago — hand-carved lamb and chicken on fresh-baked artisan pita with homemade tzatziki — alongside fresh-baked bougatsa, spanakopita, creamy avgolemono soup, Greek ''ancient'' Pinsa pizza, baklava, and our signature ...