Ingredient:

• 4 large tomatoes, seeded and coarsely chopped
• 2-1/2 cups thinly sliced English cucumbers
• 1 small red onion, halved and thinly sliced
• 1/4 cup olive oil
• 3 tablespoons red wine vinegar
• 1/4 teaspoon salt
• 1/8 teaspoon pepper
• 1/4 teaspoon dried oregano, optional
• 3/4 cup pitted Greek olives
• 3/4 cup crumbled feta cheese