side plate
noun [ C ] uk/ˈsaɪd ˌpleɪt/ us/ˈsaɪd ˌpleɪt/
（盛放面包的）小盘子
a small plate that you put your bread on when you are eating the main part of a meal
US配菜碟
a plate on which a small extra dish of food, for example vegetables or salad, is served