The Hat is a Southern California restaurant chain, renowned for its pastrami dip sandwiches. Founded in 1951 in Alhambra, California, The Hat initially gained popularity as a small stand specializing in "World Famous Pastrami." Its signature offering, the pastrami dip sandwich, quickly became a local favorite, and over the years, the restaurant expanded to multiple locations throughout the region. Known for its generous portions and casual, retro atmosphere, The Hat has remained a staple in Southern California, offering classic American fast food such as burgers, fries, and chili cheese fries alongside its beloved pastrami sandwiches.