Soup
The cafeteria in my office building is random. Some specials are good (their roast beef is awesome) and some not so good (the mushroom bacon burger that contains neither mushrooms or bacon). Their soups are generally on the bad side. Last month they served me a cream of mushroom soup whose mushrooms had been somehow chopped into a fine mist, rather than any size large enough to actually chew.
So I stopped getting their soups. But today was beef barley, and how can you screw up beef barley?
It's like eating a big bowl of beef gravy with barley in it.