Step 1

In a small bowl, combine onion with vinegar and let soak while you prepare the other ingredients, about 15 minutes. Drain onions, reserving vinegar.

Step 2

In a salad bowl or large mixing bowl, combine tomatoes, cucumber, olives, onion, olive oil, and about 2 tablespoons (30ml) of the vinegar left over from quick-pickling onion. Season with salt and one large pinch of oregano, toss gently to combine, then adjust to taste with more salt and vinegar, if desired.

Step 3

Lay slabs of feta on top, sprinkle with remaining pinch of oregano, and drizzle with olive oil. Serve, soaking up juices with bread.