• 3 tablespoons extra-virgin olive oil
• 1 teaspoon minced garlic
• 2 tablespoons fresh lemon juice
• Kosher salt and freshly ground black pepper , to taste
• 1 tablespoon chopped fresh oregano (or 1/2 teaspoon dried), and whole oregano leaves for garnish
• 4 pounds assorted heirloom tomatoes , cut into wedges or halved, depending on size
• 1/2 cucumber , sliced into very thin rounds
• 1 small red onion , sliced into very thin rings, soaked 15 minutes in cold water and drained
• 3/4 cup (6 ounces) crumbled feta cheese

In a sealable container, combine olive oil, garlic, lemon juice, 1/2 tsp. salt, and chopped oregano. Seal and shake well. On a serving plate, arrange tomato, cucumber, and onion slices in random layers. Drizzle with dressing; season with salt and pepper. Top with feta cheese and garnish with whole leaf oregano before serving.