You don't need a plane ticket to visit the sunny Mediterranean coast; just learn how to make this incredibly simple yet flavorful Greek salad dressing. Once you serve it upon your favorite greens, you'll be instantly transported with the taste of mustard and oregano still on your tongue.
Place all the ingredients in a jar. Secure the lid.
Shake well until combined.
Notes
You can use fresh oregano instead of dried oregano. Fresh oregano has a vibrant, herbaceous flavor that will complement your Greek salad dressing. Just substitute the dried oregano with a tablespoon of finely chopped fresh oregano leaves. Keep adding more until you're happy with the taste.
If you don't have red wine vinegar on hand, another vinegar with a similar tangy flavor profile (think apple cider vinegar or white wine vinegar) should suffice. The taste of the dressing will change, obviously, so sample as you add the substitute.