Finely chop onion, carrot, and celery.
Heat olive oil in a pan and sauté the chopped onion, carrot, and celery.
Add the ground beef and pork, and cook thoroughly until browned.
Add minced garlic to infuse aroma.
Add canned tomatoes, tomato paste, and diced tomatoes, then mix well.
Pour in red wine, add bay leaf, salt, and pepper, and simmer over low heat.
Cook for at least 1 hour on low heat until the sauce thickens.
Serve the finished sauce with pasta.