Cut the pork and vegetables into bite-sized pieces.
Add olive oil to a pan and sauté the pork.
When the pork is cooked, add chopped onion, carrot, and celery, and stir-fry.
Pour in the tomato sauce and season with herbs, salt, and pepper.
Simmer over low heat for 20–30 minutes to blend the flavors.
Serve the finished ragù on a plate.