Cook the Italian sausage until browned, breaking it into pieces as it cooks.
Add the olive oil, onion, and red bell pepper, and cook until the vegetables have softened about 5 to 7 minutes.
Add the garlic and Italian seasoning and cook for about a minute.
Add the diced tomatoes and chicken broth and stir to combine.
Bring the soup to a simmer.
Add the gnocchi and cook according to the package directions. Gnocchi only takes 3 to 5 minutes to cook and they start floating to the top when fully cooked.
Add the cream and chopped spinach, and cook another minute or 2, until the spinach is slightly wilted.