Tagliatelle with Bacon and Spring Onions

At the end of our morning writing sessions, Richard and I usually repaired to the kitchen for an impromptu lunch of whatever combination of food his fridge provided. On one occasion this turned out to be streaky bacon (Mr Cutting, his local butcher's finest unsmoked), a bunch of spring onions, fresh supermarket tagliatelle, extra virgin olive oil and Reggiano Parmesan cheese. It tasted awfully good, even with shop-bought pasta, but it would have been even better w