Combine Ingredients: In a small mixing bowl, whisk together the olive oil, red wine vinegar, lemon juice, dried oregano, dried basil, minced garlic, and Dijon mustard until well combined.
Season: Season the vinaigrette with salt and pepper to taste. Start with a pinch of each and adjust according to your preference.
Mix Well: Whisk the ingredients together vigorously until the mixture is emulsified. You can also shake the ingredients in a tightly sealed jar to emulsify them.
Taste and Adjust: Taste the vinaigrette and adjust the seasoning if needed. You can add more vinegar for tanginess, more olive oil for richness, or more herbs and spices according to your taste.
Serve: Use the Greek vinaigrette immediately to dress salads, grilled vegetables, or as a marinade for meats. Store any leftover vinaigrette in an airtight container in the refrigerator for up to one week.