Cut bacon into bite sized pieces and fry over medium heat in large soup pot until cooked. Removed to paper towel lined plate to drain.
Add sausage to pot and cook and break up until crumbled. Add in onion and cook until almost done. (about 10 minutes). Add in garlic and finish cooking (about 1 to 2 minutes). Remove and drain on paper towels.
Add meat back into pot. Add in chicken stock, potatoes, salt, black pepper and red pepper flakes. Bring to a boil, reduce to simmer. Cover and cook until potatoes are fork tender, about 30 to 45 minutes.
About 30 minutes before serving add in cream and kale to cook.
Notes
I like to cook my soup for a few hours for the flavors to really develop, but it is not necessary for doneness. Adjust chicken stock according to how thick you like your soup. I start with 48 and add depending on how long I cook the soup. You can also add water to control salt.If you like a thicker consistency you can add a cornstarch slurry to the soup at the same time you add in the kale. You can do this by adding 2 to 3 tablespoons of cornstarch to 1/4 cup of water, then pour into soup mixture and stir.
Slow Cooker Zuppa Toscana
Cook sausge and bacon in a skillet until done.
Add everything to the slow cooker EXCEPT the cream and kale.
Cover and cook on LOW for 6-7 hours or HIGH for 3-4 hours.
When the cooking time is done, add the heavy cream and kale, push the kale down in to the soup.