Apple Newtons are really good V - like little apple pies.

Maybe you could check with your student's mom and find out if the allergy is to all nuts. Almond butter is as good as peanut butter.

Any fresh vegetable, carrots, celery, broccoli, etc. Bring a little container of dressing or something to dip them in.

If you could find a small insulated bag, you could keep cheese in it. I've got one the size of a small brown lunch bag.

If you can stand the cheese there are Handi Snacks