French phrase
Une petite portion de ~, s'il vous plaît.
Meaning
A small portion of ___, please.
When to use it
A polite request for a smaller serving of something. Used at restaurants or food stalls with a gentle tone.
Example dialogue
Une petite portion de riz, s'il vous plaît.
A small portion of rice, please.
D'accord, je vous l'apporte.
All right, I'll bring it to you.