The galley and dining room/mess are normally found on a lower deck and meals are provided around the clock.
The main meal times are at 0500-0700hrs, 1100-1300hrs, 1700-1900hrs and 2300-0100hrs, but the galley is open almost 24 hours a day so you can obtain snacks in between meal times.
The quality of food varies from rig to rig but is usually pretty good.
Alcohol being forbidden offshore, there’s only non-alcoholic wine or beer to wash down the feast.