Caesar salad is a classic salad made with romaine lettuce, croutons, Parmesan cheese, and a creamy dressing. It originated in Tijuana, Mexico, but has become a popular salad worldwide. The dressing is made with garlic, anchovies, egg yolks, Dijon mustard, lemon juice, olive oil, and Parmesan cheese. It is a refreshing and satisfying salad that can be enjoyed as a side dish or a main course.