Ingredients: 1 bay leaf,1/4 teaspoon freshly ground black pepper, plus more as needed,Freshly ground black pepper,1 cup canned crushed tomatoes,3/4 pound carrots, cut into 1-inch pieces,1/4 cup grated farmhouse cheddar (optional),1/2 pound button or cremini mushrooms, trimmed and quartered,1 large egg,3 tablespoons minced flat-leaf parsley leaves,2 teaspoons chopped fresh thyme leaves,2 large cloves garlic, minced,2 pounds ground lamb,1 teaspoon kosher salt, plus more as needed,1 teaspoon kosher salt plus more,Kosher salt and freshly ground black pepper,1 1/2 cups diced onion,2 pounds russet potatoes (about 4 medium), peeled and cut into 1-inch pieces,1/2 teaspoon sugar,3 tablespoons tomato paste,3/4 pound turnips, cut into 1-inch pieces,1/4 cup unsalted butter,1 teaspoon plus 2 tablespoons unsalted butter,2 teaspoons unsalted butter,3/4 cup whole milk
Instructions: