In a separate bowl, combine the sliced grape tomatoes, sliced Kalamata olives, diced cucumber, and thinly sliced red onion.
Sliced grape tomatoes to taste, Kalamata olives, 1/2 cucumber, 1/2 red onion
In a small jar or bowl, whisk together the olive oil, salt, black pepper, dried oregano, lime juice, and vinegar until well combined.
1/4 cup olive oil, 1 teaspoon salt, 1/2 teaspoon black pepper, 1 teaspoon dried oregano, 2 Tablespoons lime juice, 1 teaspoon vinegar
Pour the dressing over the salad ingredients, and toss gently to coat everything evenly.
Spoon the prepared Greek salad mixture over the yogurt dip in the serving bowl.
Optionally, garnish with additional fresh herbs, such as parsley or dill, for added flavor and presentation.
Serve the yogurt dip with Greek salad topping immediately, sprinkle sumac and zaatar along with pita bread, pita chips, or fresh vegetable sticks for dipping.