Shepherds Pie

Name: Shepherd's Pie
Ingredients: 2 medium russet potatoes (about 1 1/2 pounds), peeled and quartered; 2 medium turnips (about 1 1/4 pounds), peeled and quartered; Kosher salt; 4 tablespoons unsalted butter; 1/2 cup whole milk; 1/4 cup grated parmesan cheese; 2 tablespoons chopped fresh chives; Freshly ground pepper; 4 strips thick-cut applewood-smoked bacon, diced; 2 pounds ground beef chuck; 1 small onion, finely chopped; 2 carrots, finely chopped; 2 stalks celery, finely chopped; 4 ounces cremini mushrooms,; finely chopped (about 2 cups); 2 teaspoons chopped fresh thyme; 3 tablespoons tomato paste; 2 tablespoons all-purpose flour; 1 3/4 cups low-sodium chicken broth; 1 tablespoon Worcestershire sauce; Kosher salt and freshly ground pepper; 2 tablespoons chopped fresh parsley