Rigatoni with Sausage and Cabbage - Lidia

Ingredients

• Kosher salt
• 3 tablespoons extra-virgin olive oil, plus more for drizzling
• 3 sweet Italian sausages (totaling about 12 ounces), removed from casings
• 1 large red onion, sliced
• 2 teaspoons chopped fresh thyme
• 1 small head savoy cabbage, coarsely shredded
• Peperoncino flakes
• 3 tablespoons tomato paste
• 1 pound rigatoni
• 1 cup freshly grated Grana Padano