a salad containing lettuce with small pieces of fried bread, mixed with a dressing (= a cold sauce) containing oil, lemon juice, egg, parmesan cheese, and anchovies (= small, salty fish)

She ordered a Caesar salad and a glass of water. 她点了一份恺撒色拉和一杯水。

I put a big bowl of Caesar salad on the table. 我把一大碗恺撒色拉放在桌子上。