Smoked sausage spinach soup

Here’s a “let’s use up what’s in the fridge” meal for you — I had a near-expired Johnsonville smoked sausage (and did you notice the shrink ray hit those? 13.5 oz now, thankyouverymuch — didn’t smoked sausage used to be closer to 1lb?), some sad looking mushrooms from the $.49 sale at ALDI last week, …