Preheat the oven to 200C/400F/Gas 6.
Put the beetroots and shallots, unpeeled, on a sheet of foil and drizzle with the oil. Wrap them up and seal to make a parcel and bake in the oven for 40-50 minutes, or until soft.
Remove from the oven and allow to cool. Once cool, peel the beetroots and shallots and cut into quarters.
Make the mustard and honey dressing by blending all the ingredients together in a bowl or blender until smooth.
Blanch the broad beans in boiling water for a couple of minutes and then drain.
Heat a large frying pan and add the broad beans, peas and mangetout. Add the mustard and honey dressing to the pan and cook for a couple of minutes.
Make the blue cheese dressing by blending all the ingredients together in a blender until smooth.
Place the beans, mangetout and peas in a large serving bowl.
Scatter over the pieces of torn mozzarella, shallots and beetroot.
Dress the salad with a little of the blue cheese dressing, garnish with a few torn basil leaves and serve.