A Caesar salad is a green salad made with romaine lettuce and croutons, and seasoned with parmesan cheese, lemon juice, olive oil, egg, Worcestershire sauce, garlic, and black pepper. The salad is named after Caesar Cardini, an Italian immigrant who is believed to have invented it in his Mexican restaurant in the 1920s. The salad's popularity has since spread worldwide, with numerous variations and adaptations. In Hebrew, it is known as סלט קיסר (Salat Kaiser), while in Spanish it is called ensalada César, and in French, it is referred to as salade César. The salad is often served as an appetizer in many restaurants and has become a staple in American cuisine. The traditional recipe includes a dressing made with raw egg, which has led to some controversy due to food safety concerns, but many modern versions use pasteurized eggs or omit the egg altogether.