In a large pan, par cook the sausage.
While it’s cooking, heat 1 tbsp olive oil on medium in a large pot. Stir in celery and onion.
When sausage is browned on the outside, drain by pouring into a metal strainer and set aside.
Next, add chopped potato, garlic, mushroom, and seasoning to the oiled pot and cook another 2-3 minutes. Stir in chicken broth and sausage. Heat through.
While soup is heating, cook bacon. You want it decently crisp since it’s going to sit in soup. Let it dry and cool in a stainer or a cooling.
While bacon is drying and cooling, turn heat off and add milk and kale. Stir.
Lastly, either with a knife or hands, rip or chop bacon into small pieces and add to soup. Let sit at least 30 minutes before serving.