In reply to Lusk:
Depends if you got somewhere to keep them and colleagues who'll not steal them! Used to do 5gat when I was in 5days a week but now its once (and I'm crap in the mornings so will not make and more than likely forget I'd I did) its not worth it.
Supermarket salad bar, or whatever is feckin cheap and worry about real food later, or wetgerspoons for sausage and mash I'd I need time away from my desk.
On the move/work food for me is something to keep me going, not something to enjoy sadly