Sizzler is a chain of restaurants in the United States. This restaurant chain is franchised and has its headquarters in Mission Viejo, California. This restaurant is known for serving seafood, salad and salad bar menus. It was founded in the year 1958 by Del and Helen Johnson. It offers shrimp, lobster, steak and salads. There are more than 120 locations found in the United States and there are also locations in China, Australia, Japan, Indonesia, Puerto Rico, South Korea, Thailand and more. Some of these locations are operated by another company.