You really should make an effort to replace some of these bars with actual meals. It will be worth the effort. Can you find a couple of hours over the weekend to cook? If so, grab an empty 5-pound protein tub and make some chili. Here's one recipe:
http://www.t-nation.com/tmagnum/readTopic.do?id=869691
What I used to do was much more simple. It was something like cans of stewed tomatoes, tomato paste, a ton of kidney beans and some other beans, chicken breast, and chili powder. One tub of this will give you maybe fifteen portions?
The chili is just one suggestion. Anything else that you can think of that you can cook in bulk and throw in your freezer in individual tupperware containers will do.