Thanks ladies for all the ideas. I am definitely going to do the bread and milk idea.
I have decided on a bake that her hubby can just pop in the oven to melt the cheese, a potato salad and a chocolate cake. These are all things I am good at cooking and are relatively easy.
Fresh things for sandwiches sounds like a great idea too
I'm going to make them tonight when DD is in bed and drop them off in the morning. I'm thinking it might be best to put them in an esky and leave them at the door so I don't disturb them.