We have known for a while what the people of Pompeii eat. There were even restaurants putting up Pompeii last meal menus in London/UK. The fish part is probabl

We have known for a while what the people of Pompeii eat. There were even restaurants putting up Pompeii last meal menus in London/UK. The fish part is probably garum[1] ..a condiment fermented fish entrails. I have had the unenviable task of helping to prepare this for a chef who picked me because I was a vegetarian then. Probably known as Liquamen in Pompeii but it’s the same as Garum. it’s basically fatty gish(sardines/mackerel/tuna) that is heavily salted to remove the juices and it’s then fermented. Actually it ends up smelling not so fishy at all. Salted and brined fish is common in Asia too. In fact, the origins of ketchup is actually a fish based sauce from China. Bit different method. [1] https://en.m.wikipedia.org/wiki/Garum https://en.m.wikipedia.org/wiki/Garum