Spaghetti alla Chitarra with Lamb and Sweet Pepper Ragù

Name: Spaghetti alla Chitarra with Lamb and Sweet Pepper Ragù
Ingredients: 1⁄2 cup olive oil; 1 lb. ground lamb; 3 bay leaves; 3 cloves garlic, thinly sliced; Kosher salt and freshly ground black pepper, to taste; 1⁄2 cup dry white wine; 1 1⁄2 cups lamb or chicken stock; 1 (15 oz.) can whole peeled tomatoes, crushed by hand; 2 large red bell peppers, stemmed, seeded, and sliced 1/4″ thick; 1 large yellow bell pepper, stemmed, seeded, and sliced 1/4″ thick; 1 lb. spaghetti alla chitarra (eataly.com) or thick spaghetti; Grated Pecorino Romano, for garnish