Long, long ago, airline travel was a legendary luxury. Passengers and crew dressed up in appropriate costumes. The food was rewarmed in the little, carefully designed galley kitchens, but somehow everyone saw it as miraculous, and even thought it tasted great. I'll never know, but standards were different then in many ways.
More recently, experience with airline food became more and more disagreeable. But now, they've taken the kitchens out, and they sell bags of dry snacks and my least favorite sandwich, the soggy wrap. In first class, they still give away some food, so the kitchens pictured below may not yet have disappeared entirely.