2Warm broth in a saucepan over low heat. Meanwhile, warm 2 tablespoons olive oil in a deep-sided large saucepan over medium-high heat. Add sliced portobello and white mushrooms; cook and stir until soft, about 3 minutes. Remove mushrooms and their liquid to a bowl; set aside.
3Add remaining 1 tablespoon olive oil to the saucepan. Stir in shallots and cook for 1 minute. Add rice; cook and stir until rice is coated with oil and pale, golden in color, about 2 minutes.
