Leftovers
01
残り物, 食べ残し
the amount of food that remains uneaten after a meal and is typically saved for later consumption
例
He made a delicious soup using the leftovers from last night's roast chicken.
彼は昨夜のローストチキンの残り物を使って美味しいスープを作った。
残り物, 食べ残し