Cook udon per package directions, rinse and drain. Heat the oils in a large skillet and add the cooked udon, shoyu and green onions. Stir fry over medium heat until hot, stirring frequently. Serve.
Per serving - 241 calories, 5 gram fat (20% calories from fat), 8 gram protein, 38 gram carbohydrate, 3 gram fiber, 0 milligram cholesterol, 329 milligram sodium