How do you say egg-roll in french?

There isn't a direct one-to-one translation of "egg roll" in French. However, here are some options depending on the context:

* "Nems" is the most common and accurate translation. It refers to a Vietnamese spring roll, which is similar to an egg roll in appearance and preparation.

* "Rouleau de printemps" literally means "spring roll" and is another suitable option, particularly if you want to emphasize the freshness and light nature of the dish.

* "Rouleau croustillant" translates to "crispy roll" and can be used if you want to highlight the texture of the egg roll.

* "Rouleau d'œuf" literally means "egg roll" and is the most direct translation, but it's not as commonly used as the other options.

Ultimately, the best translation will depend on the specific situation and the desired level of formality.