The strong, fragrant scent of oregano is enhanced when the leaves are whole because they retain more oil and smell than when they are cut. An herb with a hint of lemon and a mild peppery taste, oregano is a common addition to pizzas and pasta sauces. Simple to Include in Your Diet. Despite the common misconception that oregano is only used as a topping for pizzas and pasta meals, there are several applications for this adaptable herb. For a nutrient-dense salad, try incorporating entire oregano leaves into other greens. You can also sprinkle the leaves into chili, soups, and stews.