Dig In At Circle D's Cafe! Located in downtown Ryan off Highway 81, Circle D Restaurant is a family owned and operated diner. D’s features an array of secret family recipes that have been passed down from generation to generation. The restaurant is open for breakfast and lunch on Monday through Friday from 8:00 a.m. to 2:00 p.m. Offering large portions at low prices, the menu features everything from country style cuisine and mouthwatering burgers to tantalizing Tex-Mex and more. They also offer homemade daily specials and desserts. Drop in to Circle D's cafe to enjoy a hearty meal full of flavor during your next stop in Ryan, OK!