8 ounces soba noodles  | 
                                                3 tablespoons vegetable oil  | 
                                                1/2 lb firm tofu, cut into 1/2-inch cubes  | 
                                                4 carrots, julienne  | 
                                                1/2 lb prepped shiitake mushroom  | 
                                                1 1/2 cups thinly sliced scallions  | 
                                                2 tablespoons chopped ginger  | 
                                                2 teaspoons sesame oil  | 
                                                1 tablespoon soy sauce  | 
                                                2 tablespoons seasoned rice vinegar  | 
                                                1 tablespoon toasted sesame seeds  |