Just wanted to say thanks to those who recommended Primal Kitchen as a resource. Lunchboxes are a perennial challenge for folks (me included...hard to avoid ruts!). Once my daughter's preschool wraps for the year soon, I'll probably start a series on packed lunches for my husband. Haven't found a great lunchbox for him yet; since he likes warming stuff in the microwave I may simply stick with our lidded Pyrex bowls for now.
...unless anybody has a microwave-friendly adult-sized lunchbox recommendation...?