My travels have taking me over the pond a few times and across North America.
My best inflight food was on BA, ATL-LGW last fall. It was out of this world! The meal was very filling. The menu, which I kept like always included: For dinner, Shrimp, potato and lima bean salad served w/ grilled chicken breast with Parmentier potatoes, roasted vegetables and a basil and sun-dried tomato sauce. I was lucky enough and still hungry too, when the stedward came through I asked if there were any meals left? He answered in the charmed voice, "Yes sir, would you care to try the chicken or the beef?" Seeing that I had just enjoyed the chicken potion of the flight, I choose the beef. Baked penne pasta with beef, spinanch and mozzarella. Both meals were served w/ chocolate cheesecake and cheddar cheese and crackers on the side. Not to forget that I had a nice full glass of white wine w/ both meals.
Staying state side, I enjoy many meals on transcontinental flights, mainly aboard DAL, UAL, and the less talked about Froniter airlines. Frontier does not serve full meals, however they serve a very fulling breakfast wrap along w/ the afternoon snack of a grilled chicken wrap w/ a bag of chips and a sugar cookie.
The best inflight meal that beats all above was on board Eastern airlines coming from LGA-ATL when I was twelve years old. I had the best lasagna have served w/ salad, green beans, and a huge dinner roll w/ enough butter to clog my Uncle Harry's heart for weeks!!
Man, it sure was inflight serve back then