In a jar or sealable container, combine the vinegar, olive oil, garlic, lemon zest, lemon juice, oregano, salt and pepper. Shake until well mixed. Set aside.
⅓ cup red wine vinegar, ⅓ cup extra virgin olive oil, 2 garlic cloves, 1 tablespoon lemon zest, 1 tablespoon freshly squeezed lemon juice, 1 ½ teaspoons oregano, 1 teaspoon salt, ¼ teaspoon ground black pepper