lemon juice, to taste
2 onions, finely chopped
100g/3½oz baby spinach leaves
200g/7oz green lentils
salt and freshly ground black pepper
curry powder, to taste
oil, for frying
knob of butter
100ml/3½fl oz double cream
1 x 350-400g/12-14oz fillet of smoked haddock, cut into 4 portions