4 tablespoon olive oil, divided
1 (13 ounce) package Turkey Polska Kielbasa, sliced and quartered
1 large yellow onion, diced
4 carrots, chopped
2 garlic cloves, minced
1 (15-ounce) can diced tomatoes, drained
1 (28 ounce) can crushed tomatoes
1 (15.5 ounce) can cannellini beans
8 cups chicken broth
1/2 cup cooked sorghum
1/2 cup pearl couscous
salt and pepper to taste
1 teaspoon dried parsley
1 1/2 cups fresh spinach, chopped and stems removed
1/4 cup Parmigiano Reggiano, grated