Unfortunately, we live in an era where there is so much pretentious clap-trap written about food, that I sometimes feel like going to Hopewood Health Farm at Wallacia and doing a juice fast! If you took all the ludicrous foodie shows off SBS TV, they might have to go back to showing the nudie movies that were their staple fare years ago! It would certainly be an improvement.
If one has ever walked through a real commercial kitchen and then peeked into an aircraft galley, one can see why aircraft food can never be the same as top restaurant food. I was a QF Flight Steward in the Sixties (mainly on the venerable B707) and believe that the meals we served in Economy way back then were tastier than most I have tasted in Y today. Maybe we used real ovens, rather than microwaves --- I don't think microwaves had been invented when I was flying for a living! I have recently flown Business on Etihad to the UK and back, and BA Premium Economy on the same route. The Etihad offering was well presented and tasty --- but of course with a slant to Middle Eastern taste buds, while the BA offering was the same I could have got for less money way down the back of the plane.
The one thing I learnt about food and drink on aircraft, after 3 years as a Flight Steward and another 10 as an international travel advisor and inveterate traveller, was that as long as it was not burnt to a crisp or so undercooked the blood ran out, it was OK! The secret to successful international travel is to eat and drink sparingly. To do otherwise, leaves you more susceptible to jet lag and a hangover. If you want flash food, go to a restaurant --- don't expect it at 40,000 feet! You paid your airfare to get from point A to Point B quickly, and in safety and relative comfort. Don't expect "cordon bleu" as well. If you prefer to travel slowly, as I do these days, try a premium cruise ship. You then can really enjoy some good tucker without worrying about jet lag!