As a finish and condiment, high quality extra virgin olive oils are poured over everything from rice, potatoes, vegetables and beans to meats, poultry and fish. Olive oil is a versatile ingredient that has been used in cooking for thousands of years. It has broken down a lot of boundaries in recent times, becoming a staple in kitchens well beyond the area of its Mediterranean roots. Not only can you cook just about anything with olive oil, you should cook just about everything with olive oil instead of using the less healthy fats, such as butter or margarine.