1tspsmoked paprika(optional; if you want that smoky flavour)
Heat oil in a large pan over medium heat and cook the onion and celery until softened (approx for 2-3 mins). Add the sausage (breaking the sausage up into the pan), rosemary and garlic (and paprika if you want a smoky vibe) and cook for 3-4 mins or until the sausage is browned.
Add wine and allow to bubble for 2-3 mins and reduce by approx half then add the passata.
Season, increase the heat to high and bring to the boil then reduce the heat to low and let simmer for anywhere between 20 mins to 1.5hrs (it depends if yiu're in a rush but the low and slow will be tastier)
When ready, cook your penne pasta and serve with the ragu and some grated parmesan.