Christmas Stuffing with Bacon

Name: Christmas Stuffing with Bacon
Ingredients: 8 ounces applewood-smoked bacon, chopped into 1/2-inch pieces; 4 1/2 cups low-salt chicken broth; 3 tablespoons chopped fresh thyme; 1 1/4 cups short-grain brown rice; 1 1/4 cups wild rice; 2 tablespoons unsalted butter, at room temperature; 2 tablespoons extra-virgin olive oil; One 14-ounce bag frozen pearl onions, thawed; 1 teaspoon kosher salt; 3/4 teaspoon freshly ground black pepper; 12 ounces (3 large) portobello mushrooms, shredded or thinly sliced; 8 ounces Brussels sprouts, trimmed and thinly sliced; 1/2 cup hazelnuts, toasted, husked, coarsely chopped, optional