• 8 oz. buffalo mozzarella or regular mozzarella, torn into pieces
Using your hands, crush the whole tomatoes into a 6- to 8-quart slow cooker. Add the onion, garlic, sun-dried tomatoes, tomato paste, wine, dried basil, oregano, thyme, salt and pepper. Give everything a good stir. Add the short ribs.
Cover the slow cooker and cook on low for 6 to 8 hours or high for 4 to 5 hours. When the short ribs are falling off the bone, remove them from the sauce and let cool slightly, then shred the meat, discarding the bones.
Stir the kale and white beans into the sauce. Crank the heat up to high, cover and cook for 20 to 30 minutes more. Stir in the shredded meat.
Meanwhile, bring a large pot of salted water to a boil over high heat. Add the pasta and cook until al dente, according to the package directions. Drain, then return to the pot and toss with the butter and fresh basil.