1 carrot, cut into small cubes
4 lemon wedges, to serve
1 onion, finely sliced
陆 bunch flatleaf parsley, roughly chopped
2 small shallots, finely chopped
200g/7oz tinned butter beans, rinsed and drained
salt and freshly ground black pepper
100ml/3陆fl oz olive oil
50ml/2fl oz water or vegetable stock (if required)
100g/3陆oz cooking chorizo, diced
4 halibut steaks, bone in and skin on