You can refer to food that has not been eaten after a meal as leftovers.

你可以将饭后未食用的食物称为剩余食物

Why are you cooking? We have so many leftovers in the refrigerator.

你为什么在做饭？我们有那么多剩饭在冰箱里。

Could you pack up these leftovers for me?

你能帮我把这些剩菜打包吗？

We ordered a lot of food, so we had a lot of leftovers at the end of the night.

我们点了很多吃的，所以晚上剩了一堆。

I microwaved some leftovers for dinner.

我用微波炉加热了一些剩菜当晚餐。

Oh, it was excellent, thank you. Could we get the leftovers to go?

哦，特别好，谢谢。我们可以把剩下的饭菜打包带走吗？

Yep. Leftovers go in the food waste bin, and diapers go in the regular waste bin.

是的。剩饭剩菜丢在厨余垃圾桶里，尿布丢在普通垃圾桶里。

No special plans: probably just eating some leftovers and drinking a few with my mates. You?

没什么特别的。应该就是吃一些剩菜，和朋友们喝点。你呢？

Waiter, I need to pack the leftovers.

服务员，我需要将剩菜打包。

He conjured a delicious meal out of a few leftovers.

他居然用几样剩下的东西做出了可口的一餐。

She produced a delicious meal out of a few leftovers.

她利用几样剩下的东西烹制出一顿美味饭菜。

Eat leftovers, instead of eating out.

吃剩菜，不下馆子。

Learn how to use leftovers in recipes.

学会如何使用残羹剩饭。