Mediterranean Grain Stuffing

Name: Mediterranean Grain Stuffing
Ingredients: 1 cup wild rice; 4 cups low-sodium chicken broth; Kosher salt; 1 cup farro, rinsed; 1 cup long-grain white rice; 1 stick unsalted butter, plus more for the pan; 1 red onion, chopped; 3 stalks celery, chopped; 3 carrots, chopped; Freshly ground pepper; 2 teaspoons dried thyme; 1 preserved lemon, seeded and finely chopped; 1 cup pitted kalamata olives, roughly chopped; 1 28-ounce can diced tomatoes; Chopped fresh parsley or basil, for topping