Maybe not the best, but some of the most memorable meals were after I came in from a long stint on a wildfire on Alaska. On fires there you got military rations (C-rats when I started, later MREs) for three days, then they'd paracargo or helicopter in boxes of fresh(er) food that were numbingly uniform - beef steaks, canned ham, hot dogs, potatoes, onions, rice, bread, pb&j, canned fruit, oatmeal, coffee...etc. that you prepared over an open campfire. After 10 or more days on a fire later in the season you got so f'n sick of the food...
Anyway, I got in the habit when I came home off a fire there of taking a long, long shower (no showers on AK bush fires) and maybe a sauna, putting on some nice clean clothes, picking up my mail, and going to a restaurant on the river where they served fresh oysters and draft beer. I'd get a couple dozen oysters, a couple Alaskan Amber drafts, and a big ol' salad, sit out on the deck by the river and eat food that hadn't come out of a box or bag. Those were exquisite meals.
One time we spent a week in pre-Katrina New Orleans hitting some of the best restaurants in the Garden District and French Quarter. For my money, I don't think you can beat the food and service in New Orleans overall - the people there take those things seriously. That was an awesome week.