Tuscan Sausage and Potato Soup

Why I Love This Recipe
This was one of the first soups I learned to make well, many years ago. What is funny, is that this is based on the Toscana Soup sold at Olive Garden restaurants all over the US. Of course, as usual, over the years we have modified this recipe almost out of any recognition. We don't use heavy cream, for one and add more vegetables for another. This soup has become the base for almost all the chicken stock based soups we make.
Originally posted as part of Recipes in Rotation on My Word with Douglas E. Welch (http://welchwrite.com/blog/category/recipes-in-rotation/)
Ingredients You'll Need
1/2 pound Italian sausage links (removed from casing and crumbled)
3/4 cup diced onions
1 carrot
1 stalk celery
1 slice bacon, cut into 1/4-inch dice
1 1/4 teaspoons minced garlic
4 cups nonfat, low-sodium chicken broth
2 baking potatoes, peeled, halved lengthwise and cut into 1/4-inch slices
2 cups kale or other greens, thinly sliced
Splash of milk
Salt
*Parmesan Rind (if available)
Directions
Remove sausages from casing and brown in skillet. Set aside.
Place onions, carrot, celery and bacon in 3- to 4-quart saucepan and cook over medium heat until onions are almost transparent, 3 to 4 minutes. Add garlic and cook 1 minute.
Add chicken broth, potatoes and parmesan rind. Bring to boil, reduce heat and simmer 15 minutes. Add greens, sausage, milk and salt to taste. Simmer 5 minutes longer.