Oregano is a familiar herb that many people know from dishes such as pizza and pasta sauce. One of the most widely-used herbs worldwide, it is found in Mediterranean and Mexican cuisine and is even one of the components of chili powder. The dried form is very common, but fresh oregano is also employed in some dishes. The plant has tiny leaves that lend a pungent aroma and strong flavor to a variety of savory foods. When in bloom, the plant sports pink or purple flowers, which are also edible. As an herb, it is gluten-free and suitable for vegan and paleo diets. Fresh oregano has the most flavor and aroma. Strip the leaves from the stem and discard the stem.