Hearty Lamb Ragù With Rigatoni

Ingredients

• 1/4 cup plus 2 tablespoons extra-virgin olive oil, divided
• 2 large carrots, finely chopped
• 1 large onion, finely chopped
• 1 medium red bell pepper, finely chopped
• 120g thickly sliced pancetta, cut into 1/4-inch dice
• 500g boneless lamb shoulder, cut into 1/2-inch dice
• 3/4 cup dry red wine
• 2 cans peeled Italian tomatoes, coarsely chopped, juices reserved
• 1 cup chicken stock
• 1 bay leaf
• 1/2 teaspoon dried chilli flakes
• Kosher salt
• Freshly ground black pepper
• 500g rigatoni
• Freshly grated Pecorino Romano cheese, for serving