Remove the casings from the sausage if you purchased links.
Cook and crumble the sausage and diced onions over medium-high heat until the onions are softened and the sausage is cooked through, 8-10 minutes.
Drain grease.
Add the garlic and cook for 1 minute.
Add the flour and cook for 1-2 minutes to remove the raw flour taste.
Add basil, oregano, cayenne, hot sauce, mustard powder, pepper, and red pepper flakes. Stir to combine.
Add the chicken broth and use a silicone spatula to 'clean' the bottom of the pot.
Slowly stir in the heavy cream. Bring to a boil, reduce to a simmer.
Add the kale and tortellini and simmer for 3-5 minutes.
Taste the soup and add salt if desired. Start with ¼ tsp and add more after that if needed.
Transfer to serving bowls and serve!
