01 - Layer the sliced tomatoes and red onion on a large serving platter, overlapping slightly for an attractive presentation.
02 - In a small bowl, whisk together the olive oil, red wine vinegar, lemon juice, salt, and black pepper until emulsified.
03 - Drizzle the vinaigrette evenly over the tomatoes and onions, ensuring all pieces receive some dressing.
04 - Sprinkle the chopped parsley across the top of the salad for a burst of color and fresh flavor.
05 - Let the salad rest for 5 minutes at room temperature to allow flavors to meld before serving.