Lunchbox Frustration

I am so tired of unpacking a lunchbox full of things my daughter didn't eat!  Somebody please tell me what you put in your kids lunch that actually comes home eaten?  I mean, I could surely use that ten minutes in the morning that it takes to pack a lunch to do a number of other things.  It feels like a total waste of time when it all comes right back to me at the end of the day. I have tried PB&J, turkey rolled up, hummus and crackers (which my son eats every day), and a few other things.  She eats her yogurt and her juice.  That's it.  No wonder she looks like she could blow away in a strong wind!