Creating Keto Zuppa Toscana Soup is quite straightforward if you follow these simple steps:

1. Sauté the Sausage: In a large pot, heat a tablespoon of olive oil over medium heat. Add the ground Italian sausage and cook until browned, about 5-7 minutes.
2. Add Onions and Garlic: Add the diced onion to the sausage, and cook until softened. Stir in the minced garlic and cook for another minute until fragrant.
3. Add Broth: Pour in the chicken or vegetable broth, and bring the mixture to a gentle boil.
4. Add Seasonings: Stir in the red pepper flakes and dried oregano, enhancing the flavor profile of the soup.
5. Add Kale: Reduce the heat, and add the chopped kale to the pot. Let it simmer until the kale is tender, about 5-7 minutes.
6. Incorporate Cream: Pour in the heavy cream, stirring well to combine. Continue to warm but do not boil.
7. Season: Taste and adjust seasonings with salt and pepper as needed.
8. Serve: Ladle the soup into bowls, and top each bowl with a sprinkle of grated Parmesan cheese for added flavor.

These steps will guide you in creating this incredible dish effortlessly.