The robbery happened July 3 on the 600 block of West Anaheim Street. Police say the suspect entered the restaurant through the back door after standing around for a while.
The suspect pointed the gun at the employees, ordered one of them to the ground and demanded the other to open the register. He grabbed an undisclosed amount of cash.
As he was leaving, the suspect saw the employee on the ground attempting to get up, so he struck the employee in the back of the head with the gun. The suspect then left the scene in a dark colored minivan that didn't have a license plate. The vehicle had a white sticker on the top of the driver's side windshield.
The injured employee was treated at the scene. The suspect was described as 30 to 35 years old, about 5 feet 11 inches tall and 190 pounds. He was wearing a dark blue button-up shirt, dark pants and sunglasses.
Anyone with information was asked to contact Long Beach Police Robbery Detective Nancy Mora at (562) 570-7464.