Buffalo's Grill Restaurants Buffalo's Grill Visit Website 422 West State Street Sycamore, IL 60178 (815) 757-2504 Facebook Hours: Open Monday through Sunday10:30am - 7:30pm About Map About Authentic Mexican food for dine in and carry out right in downtown Sycamore. Burritos, tacos, quesadillas and more. Directions Located in downtown Sycamore.