Ingredients:

• 500 gr. white beans
• 4 medium sized tomatoes
• 1 bunch parsley 
• 3 dry onions, medium salt
• 1 teaspoon rad pepper 
• black olives 

for the dressing:

• 1/2 cup olive oil
• 1 tea spon vinegar
• 1/4 lemon iuice salt

Wash the beans and soak: in cold water over-night. Cover with cold water and put on to boil. When boiling, remove from heat and leave aside. 
Return beans to the boil in their soaking water, simmer gently over low heat until tender but still intact. Add salt to taste after 1 1/2 hours cooking. When tender, drain and place the beans in a bowl. 
Crush onions with a little salt. Then slice thinly into semicircles. Add to hot beans with lemon juice, vinegar and combined oils. Add the chopped herbes and chill salad for 1-2 hours.

Serve in a deep bowl. Garnish with sliced green pepper and quartered hard-boiled eggs. Wash and chop the parsleys and save a little for later. 
Boil the eggs and cut them into 4 pieces or slices when cool. Stir the dressing in a bowl and put on the beans. Add the dry onions, sliced parsley and part of the tomatoes and stir. Decorate the piyaz with the rest of the tomatoes, egg slices black olives and parsley.

Source:http://cookbook.turizm.net/cookbook/default.asp