Lentil Soup with Balsamic Roasted Vegetables

Bahan-bahan (6 porsi)

• 1⅔ cups cubed, peeled sweet potato
• 1⅔ cups cubed, peeled parsnip
• 1⅔ cups cubed, peeled carrot
• 3 tablespoons balsamic vinegar, (divided)
• 2 tablespoons olive oil
• ⅛ teaspoon kosher salt
• 4 ounces (1 cup) chopped pancetta
• 1 cup chopped shallots ((about 6 large))
• 1 cup chopped red onion
• 1 tablespoon fresh thyme leaves
• 1 tablespoon minced garlic
• ½ teaspoon black pepper
• ¼ cup dry white wine
• 1¼ cups dried lentils
• 8 cups fat-free, less-sodium chicken broth, (divided)
• 8 cups Swiss chard, (trimmed and chopped (about 9 ounces))