If I work 6 hours or more, I would really appreciate it if you did! Because at the end of the day, I am usually as hungry as everyone else.
For that reason, it would be nice to have something to eat, so that I keep my energy and creative juices flowing so I can keep on shooting. The meal does not have to be as your guest menu, as I comprehend you want to keep costs to a minimum. Many caterers offer “vendor meals” as an option.
However, it is very important to inform the caterer or the venue providing the meals that I should be served as early as possible, so that I finish my meal before the guests and can continue shooting.