Freddy’s Frozen Custard & Steakburgers, 310 N. I-35, San Marcos, opened Saturday. The restaurant’s menu includes cooked-to-order steakburgers, Vienna beef hot dogs, shoestring fries and frozen custard. Freddy's Frozen Custard & Steakburgers is open Sun.-Wed. 10:30 a.m.-midnight and Thu.-Sat. 10:30 a.m.-1 a.m. 512-392-6020. www.freddysusa.com