250g/9oz asparagus spears, tough ends removed
250g/9oz chestnut (cremini) mushrooms, sliced
400g/14oz spinach
25g/1oz fine semolina flour, plus 50g/1戮oz for dusting
350g/12oz 00 flour
sea salt and freshly ground black pepper
2 tbsp extra virgin olive oil
100g/3陆oz unsalted butter
2 free-range eggs, plus 4 free-range egg yolks, beaten together
150驳/5陆辞锄 mascarpone
150驳/5陆辞锄 taleggio, rind removed and finely chopped