My previous trip to Dubai was F-class to DXB and J-class back. The J-class food was much better and strangely way better presented than what I had (on demand yes) in F.

LHR to DXB - F-class - day flight:

Breakfast:


Caviar snack:


Lunch:


DXB to LHR - J-class - day flight:

Lunch:


Afters:


Snack before landing:



On the whole the food over both trips was very average at best.