Does such a thing exist?
I've flown every class on BA from Y to R (halcyon days) and I find the food at worst something I wouldn't dare tread on, at best ok.
It's hard to prepare a decent meal in the air, I acknowledge, but SQ, QF, CX, AY, LH don't seem to have as big a problem as BA.
The only dishes which always come up trumps on BA are:
1) A basic cold salad - ie anything which hasn't been tampered with
2) Curry - but beware those sauces can disguise a multitude of sins