Je voudrais commander un plat sans gluten, s'il vous plaît.

Pronunciation: zhuh voo-dreh kom-ahn-day uh plah sahn gluh-tahn, seel voo pleh.

Meaning: I would like to order a gluten-free dish, please.

This phrase is essential for dietary needs in French restaurants, and using it shows cultural awareness of France's evolving approach to food allergies and dietary restrictions.