Caesar salad is a classic salad that originated in Mexico but gained popularity in the United States. It is made with romaine lettuce, croutons, Parmesan cheese, and a creamy dressing made with anchovies, garlic, lemon juice, and olive oil. The salad is tossed together to coat the lettuce leaves with the dressing and topped with croutons and Parmesan cheese. Caesar salad is a flavorful and satisfying salad that can be enjoyed as a main course or as a side dish.