Is restaurant printing different from regular commercial printing?

The printing process itself is the same. What changes is the product selection, which is tuned to how restaurant materials actually get used day to day.

• Menu-specific sizes and folds you would not use for a corporate flyer
• Food-safe considerations for items that touch or sit near food
• Durable, wipeable finishes that resist grease and moisture

So it is not a different kind of printing, just a curated set of formats and finishes chosen for a busy, hands-on environment.