leftover

I think I have some leftover pizza in the fridge.

Je crois qu’il me reste de la pizza dans le frigo.

You mean that leftover food case?

Vous parlez de ce rayon de restes alimentaires ?

— The Garden of Sinners: Paradox Spiral (2008)

He didn't know what to do with the leftover food.

Il ne savait pas quoi faire des restes.

You may eat her leftover food, but tea leaves go to the kitchen girls.

Tu peux manger ses restes, mais les feuilles de thé, elles, restent aux filles de la cuisine.

— The Handmaiden (2016)

Tom gave his dog a piece of leftover Christmas turkey.

Tom a donné à son chien un morceau de dinde de Noël qui restait.