quick toddler lunch ideas for on the go

I was wondering if anybody has any good on the go healthy lunch ideas besides grilled cheese,chicken nuggets etc. That my toddler can take with him while we pick up his brother from school. He takes a nap anywhere between 10-1 but there are days he won't fall asleep till 11 and I am literally waking him up before we have to go. I just feel bad on those days cause I am literally handing him a bowl of chicken nuggets as I put him in the car. ;(.
Thank you ladies.