I've grown beetroot for years. My favourites: cooknit, peel it, dice it, add finely chopped raw garlic, sea salt, black pepper and a good olive oil. Mix well and eat either as a starter with crusty bread or use as a salad.
Madhur Jeffrey has a fantastic beetroot curry recipe. My friends have loved it and you wont find this in an Indian restaurant in YUK. To be honest the UK restaurants are best mediocre. For the most part these are run by Bangladeshi people from the Silhat region.
If you want the real mcoy then the Chore Bazaar in Albermarle Street, London. This is how it should be, including the decor. Downside it's expensive, but worth it. Check it out on TripAdvisor.
Also in Kent Tumeric Gold in Tudeley. Lots of awards. While there check out the amazing Chagal windows in the tiny church.