If you go to Admin > Meals > Staff Meals (tab) > Manage Staff Lunches, enter a date for when the meal has been recorded (seen in the Kitchen List or Blue Runner Report).
You can isolate this report to only show those staff who have been assigned a meal.
If any of these meals were accidentally added, click on the tick to remove the meal choice (so it also won't be charged for).
Once you've identified the staff member(s) you can also go to the Individual Staff Lunches Report, select that staff member, to see the meals selected for the next 20 days (in case you need to view meals for a number of days into the future).
Note how the system deactivates meals for holiday periods.
If any of these meals were accidentally added, go back to the Manage Staff Lunches Report, enter a date, and click on the tick to remove the meal choice (so it also won't be charged for).