On-Premise Catering: On-premise caterers prepare and cook the food at the location at which it's going to be served. While this generally refers to event facilities, many are also open to working in a home, provided there is suitable space and equipment.
Off-Premise Catering: Off-premise services will bring pre-cooked and pre-prepared food to the event location.
Sit-Down Plated Meal or Full-Service Catering: This is generally the most expensive option, but everything is handled by the caterer. Even here there are options, as full service may or may not include passed appetizers, desserts and beverage stations.
In addition, full service catering generally includes accessories such as linens, plates, utensils, serving dishes and full clean-up.
Take Out / Pick Up / No-Service Catering: With this option the catering service cooks the food and packages it in bulk for pick-up. Plating, serving, dishes and utensils need to be taken care of by you.