side dish
US /ˈsaɪd dɪʃ/
UK /ˈsaɪd dɪʃ/

1.
accompagnement
a small dish of food served with the main course of a meal
:
•
The steak comes with a choice of two side dishes.
Le steak est accompagné d'un choix de deux accompagnements.
•
We ordered mashed potatoes as a side dish.
Nous avons commandé de la purée de pommes de terre comme accompagnement.