For each serving, to order: In wok or sauté pan, heat 1 tablespoon oil over high heat. Add 1/2 cup mushrooms and 1/2 cup beans; stir-fry about 3 minutes or until slightly softened. Add 4 ounces chicken; stir-fry about 2 minutes or until chicken starts to brown. Lower heat; add 1 tablespoon hoisin sauce and 1 teaspoon sherry. Simmer about 1 minute or until chicken is cooked through and coated with sauce. Scoop 1 cup rice into bowl; spoon chicken mixture over rice.