Thank goodness those days are long since gone!
I learnt the hard way that it's best to keep it simple and just serve what the kids like - to hell with lentil weavers!
Favourites for most kids was hot dogs or burgers (with a veggie equivalent if needed) and carrots/cucumber/cherry tomatoes.
Avoid Coke or Ribena - any bottle with a sports top is brilliant, even if it is a FS.
More crisps than you ever think possible.