Långsamkokt nötkött ragu

👩‍🍳 Gör så här

1. 1
   In a large skillet over high heat, brown the beef and sausage and season with 3/4 teaspoon salt. Brown the meat, breaking it into smaller pieces with your spoon until cooked through, 4 to 5 minutes. Transfer to the slow cooker.
2. 2
   Add 2 teaspoons olive oil to the skillet. Add onions, celery and carrots and sauté on medium-low for about 3 to 4 minutes, until soft. Transfer to the slow cooker, add the crushed tomatoes, bay leaves, and Parmesan rind if using, cover and cook low 4 to 6 hours. (Any longer, the sauce will burn.)
3. 3
   When the meat sauce is ready, discard bay leaves and rind and serve.