If you can't finish your dinner, you can always take the leftovers home by asking the waiter for a to go box or doggie bag.

如果你不能吃完自己的晚饭，随时都可以向服务员要一个外卖餐盒或“打包袋”，将残羹剩饭带回家。

youdao

After the training ended, I was exhausted. It was snowing and I found a bag of instant noodles left, so I wouldn't have to go out for dinner.

训练后很疲劳，天正下着雪，我看到还有半包方便面，就不准备出去买晚餐了。

youdao

Thereafter, preparing for dinner consists of taking out a bag of frozen marinade and dropping some meat into it.

NPR: Dinner's Secret Weapon: The Make-Ahead Marinade