Dishes can be cooked on a stove or looted during a raid. There are many, many different kinds of dishes and each dish varies between cook time, number of servings, and amount of xp for cooking it.
You can cook a previously unlocked dish if you have enough money to do so and an open stove. The dish requires a chef to be cooked but it may be paused and resumed at any time.
TRINITY The second way to acquire a dish is by raiding an enemy cafe on the map. When raiding, there will be a random food dish on the counter. When the raid ends, it will be stolen and moved to one of your fridges. There you can decide to serve the dish to the customers or unlock it as a cookable item..