"Buffet style" refers to a type of dining where food is displayed on various tables or stations, and people can serve themselves and choose what they want to eat from a wide variety of dishes available. Full definition
Breakfast each morning was served buffet style in a large banquet hall off the main floor, though most people proceeded outside to eat on the patio. (travelcodex.com)
The restaurant serves meals in buffet style with a wide and varied choice of national and international dishes. (loveholidays.com)
This is the only hotel in the area that serves buffet style breakfast that is one of the resort's best loved specialties. (all-inclusive-costarica.com)