This soup is a kind of green vichyssoise, which comes out a little different each time you make it, depending on what veggies you have leftover in your refrigerator. It can be eaten hot or cold, but is always delish. I prefer it hot in the winter and cold in the summer. Do not be afraid to experiment with the veggies, maybe even beets would be good. You would have pink soup instead of green, pretty.
Cream of Refrigerator Soup
3 leeks (white part, mostly), washed and thinly sliced
Saute leeks, potatoes, onion, and spinach in butter in a large saucepan for twenty minutes, stirring occasionally, until soft but not brown. Add any other leftover vegetable. Stir in chicken broth and milk; bring mixture just to boiling point and remove from heat. Season with salt to taste. Puree through food mill or in food processor. Chill several hours. Stir cream into chilled soup and serve in chilled cups with a sprinkling of chopped chives.