I totally understand the budget thing. I recently went off atkins for a month (because of high grocery bills) and gained 19 pounds (yes in ONE month!!!) So I"m back on and went shopping and cut my monthly grocery bill by 25 a month from what it was when buying pastas and rice!!!

EGGS, Tuna, CHICKEN (legs are VERY CHEAP), and buying in bulk (i shop at costco) really help.

One thing I like to do for lunch on the go is egg salad , but since the same thing all the time gets boring I make different kinds. Like ranch egg salad or ceasar egg salad things like that to mix it up a bit. And I do chicken legs a lot, cook them the night before (again vary the flavors) and heat them up for lunch.