Clean, wash and cut the leek into rings. Cook for 1-2 minutes in salted water. Drain and let it cool down. Rinse beans, drain. Clean, wash and cut lettuce into strips. Dice Feta
Thyme wash, chop. Mix with tomatoes, vinegar, salt, pepper, chilli powder and sugar. Whip the oil into it. Mix with the salad ingredients, except green salad. Allow to soak, fold in green salad. Season to taste again