This is a great report, thanks for posting! I've never flown a 757 across the pond, so your WBC experience is especially interesting.
The meal seems really disappointing, but I think it's due to time of departure moreso than the equipment. By comparison, there is a fairly complete dinner service offered on LH's 10pm ORD-FRA flight. It's a bit streamlined (i.e. dessert and cheese is on the tray already I think), but there is still a separate appetizer course and normal entree selections.