Yes - there is one recipe library (Kitchen > Meals) and every menu channel picks from it. What differs per channel is the list per date, the fulfilment weekdays used, and for Catering the portion sizes offered. A recipe can be on the Meal Prep and POS menus of the same day, or on only one of them. Preset menus are also shared: tag a preset with several channels (Meal Prep, Catering, In-Store, Realtime, POS, Wholesale, Retail) and apply it on each channel's page.