Light and Bright Beef Stew

Name: Light and Bright Beef Stew
Ingredients: 2 pounds beef chuck (preferably grass-fed), cut into 2-inch pieces; Kosher salt and freshly ground pepper; Unbleached all-purpose flour, for dusting; 3 tablespoons extra-virgin olive oil; 2 leeks, white and light green parts only, chopped and rinsed; 1 tablespoon fresh thyme leaves; 2 tablespoons Worcestershire sauce; ¾ cup dry white wine; 3 ½ cups low-sodium chicken broth; 4 parsnips (8 ounces), peeled and cut into 1 ½-inch pieces; 2 sweet potatoes (1 pound), peeled and cut into 1 ½-inch pieces; Chopped fresh dill, for serving