Prep all ingredients and take sausage out of casing (if applicable). In a large pot or dutch oven over medium heat add olive oil. Once heated add in sausage. Break up the sausage into small bits/chunks and brown. Add in celery, onion, and garlic. Season with salt, pepper and red pepper flakes. Cook on medium heat until onions are almost softened (3 minutes). Add in the tomato paste, stir and let brown (3 minutes) Add in tomatoes, stir. Pour over red wine to deglaze the pan. Cook out the wine. Add in crushed tomatoes and chicken broth. Bring to a simmer. Add in basil and the parmesan rind. Cover. Let simmer for 20 minutes. Uncover. Remove the Parmesan rind and basil stem. Add in tortellini, heavy cream and spinach. Stir. Cover for 2 minutes. Uncover, grate in parmesan cheese. Serve and Enjoy
