7 large potatoes – Yukon gold are yummy.
5 celery stalks chopped
½ lg sweet onion chopped
1 sm container of 2% Fage (Greek yogurt) 7oz
Apple cider vinegar to taste about ¼ c
Parsley fresh chopped as much as you want
Salt and pepper
A pinch of sugar to cut the acid in the vinegar.

Boil potatoes until done.  Let cool a bit and peel.  Cut into chunks.
Add chopped celery, onion and parsley.  Stir.
 

In a glass jar mix fage, vinegar, salt, pepper, and pinch of sugar.  Shake until mixture is smooth. Pour over potatoes and mix.  You can add more yogurt mixture if needed. 

Calories per serving:70
Serving size 2/3 cup

Fat:  0g
Carbs:15g
Fiber: 1g
Sugars: 2g
Protien: 2g