Greek Tomato and Cucumber Salad Recipe

Ingredients

• 1 seedless cucumber
• 2 large tomatoes
• ½ large red onion
• 3 tablespoons extra-virgin olive oil ((divided))
• 2 tablespoons lemon juice
• 1 tablespoon white wine vinegar
• 1 tablespoon fresh oregano leaves
• ½ teaspoon dried oregano
• ½ to 1 teaspoon coarse or kosher salt
• ¼ teaspoon freshly ground black pepper
• ½ cup pitted kalamata olives ((halved))
• ¼ pound feta ((cut into cubes or slabs))