свой обед

one’s own lunch

→ свой
phrase Rare #39,132
one’s own lunch Свой refers to something belonging to the subject of the sentence.
RU: Она принесла свой обед.
EN: She brought her own lunch.

Том забыл свой обед.

Tom forgot his lunch.

Он отказался есть свой обед.

He refused to eat his lunch.

Ешьте свой обед.

Eat your lunch.