In a stock pot on medium heat, brown Italian sausage. The add onion and let them cook for about 3 minutes until they are soft. Add in minced garlic, and let it cook for about 2 minutes.
Then add Italian seasoning, diced tomatoes, and chicken broth. Stir it and bring it to a boil then add in the bowtie pasta. Cover and let it cook for about 10 to 12 minutes until the pasta is fully cooked.
Then stir in fresh spinach and Parmesan cheese, heavy cream, and mix until combined. Cover and let it cook for about 5 more minutes and serve this delicious easy sausage soup!