陆 cucumber, finely chopped
1 leek, thinly sliced
1 tbsp finely chopped fresh tarragon
4 plum tomatoes, halved
2 tbsp vegetable or chicken stock
salt and freshly ground black pepper
4 tbsp fat-free quark or fat-free natural cottage cheese
4 large free-range eggs, beaten
1 cooked chicken breast, skin removed, cut into small dice