In London, there are "dark kitchens" -- the take away provider pays for the equipment and the site, and the desirable restaurants provide the staff and skills. This lets the delivery provider optimize for location and services shared between multiple restaurants though the conditions for the cooks are supposedly often even worse than a cramped, hot restaurant kitchen as the dark kitchens are really just a bunch of industrial containers with kitchen in some gritty industrial park.
https://www.ft.com/content/d23c44fe-4b0b-11e7-919a-1e14ce4af...