Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   2      pounds        boiling potatoes -- peeled and chopped
     1/2  cup           plain low-fat yogurt
     1/2  cup           part-skim ricotta cheese
     1/4  cup           chopped chives
                        salt and pepper

Preparation:

Put potatoes in a large saucepan. Add cold water to cover and salt to taste. Bring to boil, reduce heat and simmer, covered, 15 minutes or until tender. Drain and return to saucepan. Add yogurt and ricotta cheese and mash with a hand held mixer or potato masher. Season with herbs and salt and pepper.