The most expensive single meal I’ve had was a 20,000 yen (~$170 usd) vegan full course meal at a 1 Michelin star restaurant called FARO in Tokyo. I bought some wine for my friend too, so it was more like 24,000 yen.
It was actually pretty good. Some kind of fancy bread appetizer, a main course meal of potato pasta, a really good set of seasoned vegetables, then vegan dessert which was a slice of cake and some kind of extremely fancy cookie perched on a bed of hazelnut spread.
Honestly most of the cost was the presentation I think. Every meal was set out in front of us arranged all fancy on these big stone plates and bowls. The food was good but not worth the cost. My memories of the meal is still good though because I was there with a friend and I hadn’t seen him in a while.