maybe instead of writing a note that he can't read, you could put in a photo of you and him together having a cuddle? I know when my children see their photos, they always smile.
My DD is almost 31mths old and while she doesn't go to daycare or anything, I do make a lunch box for her as her big brother goes to kindy. I put in little sandwiches, yoghurt, sultanas or other dried fruit. Watermelon, strawberries or other fruits that won't go brown, vege sticks, like carrots, cheese and biscuits. It all depends on what we are doing. Biscuits, chips (like rice crackers) etc.
Anything that he will eat at home and can be put into a lunch box, I would put in. I guess you have to work out if there is a fridge to keep the food cold may determine what you put in.
