Four fire engines and around 25 firefighters were called to restaurant fire on Battersea Park Road in Wandsworth.
Firefighters tackled a small kitchen fire, which spread to the ducting and up to the roof.
The Brigade was called at 1051 and the fire was under control by 1207. Fire crews from Battersea, Clapham, Chelsea and Soho fire stations attended the scene.
The cause of the fire will be investigated.