That's called shwarma and it's some of the most delicious meat known to man. Fun fact, tacos al pastor (possibly the best food of all time) is based on shwarma which Lebanese immigrants brought to Mexico:
And doner kebabs on sale in kebab shops in the UK are of very dubious origin. There have been a variety of scandals over the years about the origins of the meat.
About 20 years ago I read an article in the metro newspaper about the origins of the meat, a study having been done, which found that most kebab meat in the UK was not what it said it was. A significant proportion contained a mix of lamb, beef, pork and unknown meats. And at that time most of the allegedly 'halal' doners on the market contained pork.
Recently one of the UK's biggest suppliers of kebab meat was fined for selling doner meat that advertised 87% lamb, but was found to be using large quantities of fat and skin, with meat making up between 10 and 50% depending on which source you read. The 'meat' itself, where it was even from sheep was largely neck trim and mutton trim, and they were using goat as well without labelling it - https://www.bbc.co.uk/news/articles/cy736xme2vvo
Maybe you found some good places in east London that were actually making their shawarma on-site. But the standard of a generic 'kebab' in the UK has always been known to be awful.
> That's called shwarma
What, the elephant leg? In the UK it's mostly Doner - https://en.wikipedia.org/wiki/Doner_kebab
And doner kebabs on sale in kebab shops in the UK are of very dubious origin. There have been a variety of scandals over the years about the origins of the meat.
About 20 years ago I read an article in the metro newspaper about the origins of the meat, a study having been done, which found that most kebab meat in the UK was not what it said it was. A significant proportion contained a mix of lamb, beef, pork and unknown meats. And at that time most of the allegedly 'halal' doners on the market contained pork.
Recently one of the UK's biggest suppliers of kebab meat was fined for selling doner meat that advertised 87% lamb, but was found to be using large quantities of fat and skin, with meat making up between 10 and 50% depending on which source you read. The 'meat' itself, where it was even from sheep was largely neck trim and mutton trim, and they were using goat as well without labelling it - https://www.bbc.co.uk/news/articles/cy736xme2vvo
Maybe you found some good places in east London that were actually making their shawarma on-site. But the standard of a generic 'kebab' in the UK has always been known to be awful.