Sandy, good topic, I've been dealing with this myself these days. On the weekends, I cook larger portions and freeze them in individual size container. A frozen container in an insulated lunch bag should keep for most of the day, or you can heat it for lunch. Or put a small freezable pouch in the bag to keep a sandwich, fruit or yogurt cool for supper. On Wednesdays I do this as I get to eat supper in my car driving from town to town for class.

I also buy the baby carrots, trisquits and cheese are a good snack and I like the south beach bars or special K low fat ones. Apples, raisins and bananas travel well as do nuts - almonds, pecans, filberts (my fav!), etc. A healthier pizza with lots of veggies and or chicken also tastes good cold. And then I only pack 2 slices so I don't eat half of it....

Hope that helps!