Yes, yes, I DO resort to snack/granola type bars for the boys' lunch boxes (just not every day).
Favorites here are:
ANDI chocolate shake bars (boys get a bar each twice a week)
Enjoy Life Caramel Apple Bar (rotate that one too; although if it were up to Potatey he's have one very day)
Enjoy Life Very Berry Bar (another rotation)
For a while, Salamander was very in to the Enjoy Life Cocoa Loco Bars. Not so much anymore, have no idea why...
The Enjoy Life chewy chocolate chip cookies and double chocolate brownie cookies are really good too; I have half the kids in my street raiding my house for these cookies. And I don't think the parents of said kids realize that these cookies are allergen-free (you know how *outsiders* are when you mention allergen free foods to them; their immediate response is 'oh, there can't be much taste to that stuff.' WRONG!!)
I have tried many other brands of allergen free bars as well, but the boys keep going back to the above.