This is an old recipe that my mother used to make and we still enjoy.
Put all the ingredients in a pot along with 5 cups of water. Cook until vegetables are soft.
Mash the potatoes and carrots or put it in a food processor and puree.
Put back in the pot with the other ingredients. When lukewarm, add 1 T or 2 T. of catsup and 1/4 cup of non-fat yogurt. Stir. Never boil the soup.
Add some dill weed. I don't use salt, but you may add salt as desired. Also add pepper.