My work has a pretty sick canteen, and the prices are subsidized, meaning, depending on your luck, you can sometimes get restaurant-quality meals for three quid!
Last week the meals I had in the canteen were:
Vegetarian flat pizza with curry potatos and peas. £2.95. Mark: 7.5/10
Garlic herb chicken, thick wedges and coleslaw. £3.20. Mark: 6/10. (the chicken wasn't great)
So not the high quality I know the canteen is capable of, but we'll see how my luck is this week!