Hat Creek Burger Co. will expand to San Marcos by summer. A new location is set for 4206 S. I-35, San Marcos, and will be about 2,223 square feet, about half of which will be an outdoor covered patio. The fast-casual, family-friendly restaurant will also include a drive-thru and a fenced-in playground. It will have room for 136 seats and be open 7 a.m.-9 p.m. Sun.-Thu. And 7 a.m.-9:30 p.m. Fri.-Sat. Menu items include salads, breakfast, burgers, chicken dishes, sides and milkshakes. www.hatcreekburgers.com