No staff room in work means I've been eating Sainsbury's ready meals for about a year. The Chilli is good, the Thai curry is grand and the Jalfazi is okay. Just realised there's an all you can eat chinese across the street that does a "small box" for £3.30 which is amazing considering how much you can cram in.
Usually a roll/wrap/sandwich & a black coffee from a shop/deli.
I always get out of the place for lunch. Just a change of enviroment. There is a canteen but I rarely go near it. I hate that institutionalized feeling.