1 butternut squash, peeled, de-seeded, cut into 5cm/2in chunks
50g/1戮oz dried porcini mushrooms
1 large onion, roughly chopped
3 tbsp chopped fresh parsley leaves, to serve
250g/9oz orzo pasta
4 tbsp olive oil
800g/1lb 12oz beef cheek
1 large round sourdough loaf (the largest you can find)