Mushroom Barley Stew with Chestnuts

Name: Mushroom Barley Stew with Chestnuts
Ingredients: 8 ounces fresh Shitake mushrooms, sliced; 6 ounces dried porcini mushrooms, rehydrated and chopped; 2 onions, finely chopped; 2 carrots, thinly sliced; 2 celery stalks, thinly sliced; 4 ounces water chestnuts, chopped thin; 3 ounces roasted chestnuts, sliced; 1/2 cup barley, uncooked; 1 tablespoon tomato paste; 3 cups beef bone broth (can use water or veggie broth); 2 sprigs fresh thyme (or ¼ tspn ground thyme); 1/4 cup cup dry sherry; 1/4 cup fresh parsley, finely chopped; 2 tablespoons olive oil; 1/2 teaspoon sea salt; 1/4 teaspoon black pepper, freshly ground