1. As a Boy Entrant at St. Athan circa 1962 the food in one of the messes (not ours) was so bad that two entire entries boycotted a meal time, needless to say it got someone's attention as the CO was a Group Captain.
2. Seletar circa 1966, West Camp Airman's Mess, one of the best lunch buffet spreads I've ever seen on a military installation. the cheeseboard was extraordinary.
3. Not military, but on an offshore oil installation tied-up at Shanghai I had one of the best lunches I've ever had - roast lamb, roast potatoes and ALL the trimmings, would have cost a fortune elsewhere.