Depends on the time of day - any departure before 9.00am is enhanced by an offering of something hot (bacon roll, croissants etc) as it may not have been possible to eat before, or even after, arriving at the airport. Post 9.00am to around 5.00pm - just a drink. After 5.00pm - again a hot snack and/or sarnies. Assumes intra European flight no longer than 2.5-3 hours. Don't mind paying as most of my personal flights are on locos.