A few of my favourite places are . .. GBK - Gourmet burger Kitchen ( burger chain ) Las Iguanas ( Latin - American   bar and restaurant chain ) Nandos ( very well known Portuguese chicken chain ) Duck and WaffleYou should definitely go to a Wetherspoons   on a Friday and get fish and chips : ) ( it ' s a very British thing to do ! ) Pizza Express ( Italian style pizza chain ) I just remembered ! There ' s a lovely   chain called Patisserie Valerie for cakes and desserts : ) I think they also do an afternoon teaHi ! So I think the best afternoon tea   I ' ve heard of is at   the Ritz : https : / / www . theritzlondon . com / dine - with - us / afternoon - tea /   It is quite popular and a bit expensive though , so   I found another option too , which some of my friends have liked : https : / / www . beas . london / pages / afternoon - tea   You could also go to Bill ' s . ( They serve all kinds   of food including a full English breakfast ) https : / / bills - website . co . uk / menu /   I think you will have to book in advance for all of these options .   Let me know if there is anything else   I can help with ! : D