The situation
The guest gives an opinion of the dish and explains being unable to finish it.
English meaning: It's delicious. The portion is a little large for me; would it be all right to leave some?
Read the Japanese original
おいしいです。私には少し量が多いので、残してもよいですか。The questionWhich pieces of information should be distinguished?
Read the explanation
Clues in the scene
It's delicious. The portion is a little large for me; would it be all right to leave some?
The reason for leaving food concerns the speaker’s capacity, not its taste.
Each choice explained
Approval of flavor and a portion-size problem — Best fit
The guest likes the food but finds the portion too large. The reply separates its taste from how much this person can eat.
Dislike of the cook and an order to leave — Does not fit
The guest says nothing about disliking the cook or asking anyone to leave. The reply concerns the food’s taste and portion size.
Refusal to pay and a refund demand — Does not fit
The speaker asks about leaving food, not refusing payment or obtaining a refund. A quantity issue is not a financial demand.
An extra order and replacement dishware — Does not fit
Neither an extra order nor a new dish is requested. The difficulty is finishing the quantity already served.
Same words, another scene
A chef is testing portion sizes for a new course and has told tasters that leftovers are allowed. A participant uses the same words while giving feedback.
Taste and quantity remain separate, but the comment now also informs a menu decision. The purpose of the tasting determines how the evaluation will be used.
May I record this as positive feedback on taste and a suggestion to reduce the portion?
Literal meaning
The food tastes good, but the portion is large for the speaker, who asks to leave some.
What these words cannot tell us
Whether the amount is too much for everyone, which food will be left and whether takeaway is wanted are unknown.
A question to ask in real life
Leaving some is fine. Would you like me to check whether it can be packed?