chopped parsley, dill or chives to garnish (optional)
500g/1lb 2oz potatoes, peeled and chopped
500g/1lb 2oz swede, peeled and chopped
salt and freshly ground black pepper
1 tbsp cornflour blended with 4 tbsp water
150ml/5fl oz good-quality fresh vegetable stock
250g/9oz low-fat soft cheese with garlic and herbs
400g/14oz frozen fish pie mix, defrosted
200g/7oz frozen peas