Synonyms of serving
helpingA helping of food is the amount of it that you get in a single serving.
• extra helpings of ice-cream
portionA portion is the amount of food that is given to one person at a meal.
• fish and chips at about £2.70 a portion
rationWhen there is not enough of something, your ration of it is the amount that you are allowed to have.
• The meat ration was down to one pound per person per week.
Thesaurus for serving from the Collins English Thesaurus
a portion or helping of food or drink