Hat Creek Burger Co. locations throughout Texas are celebrating the restaurant’s 15-year anniversary in September.

The restaurant, which started as a food truck in Austin, serves burgers, chicken nuggets, salads and milkshakes and is known for its family-friendly environment. The company is celebrating the benchmark with free birthday cake shakes with a customer purchase and a chance to win free food for a year, according to a news release.

www.hatcreekburgers.com