Agree completely,Buster.None of their business.Some jobsworth presumabing to know better than the poor child's mother,cos the rules say so.
We've had packed lunch issues for a while at my children's school.They have lunchtime supervisors taking it upon themselves to tell the children they can't eat what their parent has given them for lunch because it's unhealthy.I do a healthy lunchbox but if I choose to add one treat,that's up to me,because I not only plan that meal but also the rest of the meals for the day,so I know my child's getting all they need in a day.I did have words,just Tuesday, with the office lady,who's spoken to all the dinner ladies,and there shouldn't be any more problems,and my children tell me they ate their flapjack today and no one stopped them.
A cheese sandwich is not unhealthy.I'm sure the parents just made a sandwich they knew their little boy would like and the nursery had no business interfering.