Olive oil is a staple in the Mediterranean diet and has numerous health benefits. The healthy fats in this oil actually help lower cholesterol in the human body while also helping it stay away from heart disease. The vitamins and antioxidants in this oil also make it great for the skin and hair. It also aids digestive health and stabilizes blood sugar levels. Consuming this oil in a moderate amount every day is really beneficial for your health. If that's not enough information to convince you to let the oil stay in the recipe, you must have your reasons. If you'd like to skip the olive oil, add some salt to the cabbage alone before adding the salad dressing. The cabbage will release some water which will help add extra moisture to the dressing while the oil isn't there.