Flew MIA-ZRH a few days ago in F. I decided to eat rather than to immediately sleep, as I do not often fly F. I had the balik (good as always), tuna poke (rotten, could have been sick, had I eaten it), salmon (cooked, but despite the cooking the taste was terrible), US cheeses (pretty good) and a sort of lemon cake dessert that was awful. Service was quite good, but the food (except the balik and the cheese) made me regret to not have skipped the meal and slept.
I bet that the standardized Y food was much better on this flight.