This is a triple soy bonanza. If you have an Asian market near you, get some freshly made tofu. It's wonderful. Sneak around the produce department while you're there and see if you can pick up some soy bean sprouts--much tastier than mung bean sprouts. I use vegetable oil because it's soy bean oil; hence the thriple soy bonanza. Soy products have a lot of health benefits, but you are not sacrificing taste, believe me. This way of fixing ramen noodles will change your attitude towards this lowly soup. I think you'll also agree that stir-frying the vegetables before adding to the soup improves their taste and texture.