Buy a crock pot and make a ton of chili/stew, etc. Then freeze it in ziploc bags and bring to work/school/whatever you do.
IMO the only way to break free from going out for lunch every day is to cook in bulk. If you try to make a lunch each morning you'll quit after a week.
Jazz my man whatta you doin. Fuel that fire with good eats. Shopping once a week will save you mountains of cash. Simple recipes will go along way too : D