I am a huge fan of the Lean Cuisine, Weight Watchers, Healthy Choice frozen meals for lunch. They are quick and easy to heat up and a healthy option for working moms on the go. The only problem is that they are not very filling.
I have a solution: add some veggies! I learned this trick from a friend who introduced me to Weight Watchers in college. It's easy to bring a small-sized can of green beans, carrots, peas, corn, etc to add to the meal. Green beans in particular seem to go well with many of the meals.
So if you are looking to healthfully add to your frozen lunch, give canned veggies a try!