Simmer olive oil and finely chopped small onion until wilted, then add 1/4 cup ea. carrots and celery and simmer until onion is golden after which add tomato sauce, salt and pepperoncino. Stir occasionally for 45 mins, until thickened.
Grate parmesan over sauce and pasta and "ecco, ora mangiamo!" Buon appetito anche a voi!