All Hertfordshire primary and secondary schools provide school meals (as do some nursery schools). A lot of schools are responsible for their own catering, but the main supplier of school meals in Hertfordshire is Hertfordshire Catering - go to the link on this page to find out more.
You may be able to claim for free school meals for any child who is between 3 and 19 and attending school full-time, or receiving education before and after lunch in the case of nursery schools.