Based on: http://recipes.doctissimo.com/main-dishes-recipes/vegetables-recipes/roast-beetroot-and-feta-salad.html

500g bunch of beetroot
Block of feta cheese
1 red onion, very finely sliced
Handful of walnut pieces
Fresh coriander. chopped
Chilli to taste, either powder or finely chopped fresh
Salt

Dressing:
3 tbsp olive oil
2 tbsp balsamic vinegar
1 tbsp Dijon mustard
1 tsp clear honey

Make up the dressing and mix in with the onions. Letting the onions sit in the dressing while the beetroot cooks for a while removes their harshness.
Roast the beetroot at 200C for 40 mins. They should be cooked but still firm enough to dice after being peeled.
After peeling the beetroot, cube it and the feta then mix with the dressing and onions.

To make a simpler version, miss out the onions and dress with lime juice only.
Add chilli and salt to taste
Sprinkle walnuts and coriander on top just before serving