Wash the 4 tomatoes, remove the stems, and cut into slices. Cut the dried, pickled tomatoes into small pieces. Peel the cucumber, halve it lengthways, and cut into 3-5 mm thick slices. Clean, wash, and drain the iceberg lettuce, then pluck into bite-sized pieces. Peel the 2 onions and cut into fine rings.
Dice the sheep's cheese and cut the 20 olives into rings.
Combine the lettuce, tomatoes, cucumber, onions, cheese, and olives in a large bowl.
Peel and chop (or press through a garlic press) the 2 garlic cloves. In a small bowl, whisk together 2 tablespoons olive oil, 3 tablespoons vinegar, 2 tablespoons water, the chopped garlic, salt, pepper, and thyme.
Pour the dressing over the salad and toss to combine.