salt and pepper
500g/1lb 2oz red Desiree potatoes
500g/1lb 2oz unpeeled pumpkin or squash, to end up with 250g/9oz purée
few sage leaves, finely shredded
200g/7oz fresh spinach
150-250g/5½-9oz plain flour
50g/1¾oz butter
1 free-range egg
50g/1¾oz parmesan (or alternative vegetarian hard cheese), plus extra to serve