Yes, you definitely can, but you need to be careful with your herb combinations. It can take a few experimentations before you can end up with good ones, so I will share with you the combinations I use. Mexican Oregano Since this oregano has a strong peppery flavor, I combine the marjoram with another popular herb: fresh or dried basil. You won't need too much of this versatile herb; just a dash or two. This marjoram basil mix won't 100% mimic Mexican oregano, but it will give your dish the strong flavor it needs. Greek Oregano For regular oregano, there are two perfect pairings. You can combine an equal amount of marjoram and thyme or an equal amount of parsley and basil.