A hearty one-pot soup with spicy sausage, sweet potatoes, and cheese tortellini in a creamy broth.
Here in Austin, our winters are notoriously fickle. We might have a sunny seventy-degree day followed immediately by a freezing "Blue Norther" wind that cuts right through you. On those sudden cold nights, I crave a soup that acts as a complete meal-something substantial, warming, and rich. This creamy sausage tortellini soup is exactly that. It balances the heat of spicy Italian sausage with the subtle earthiness of sweet potatoes, all brought together by pillowy cheese tortellini. It is rugged yet refined, and it has quickly become the most requested soup in my household.
Jump to:
The most surprising lesson I learned testing this recipe is that you truly do not need chicken stock. Because spicy Italian sausage is packed with fennel, garlic, and salt, it acts as a flavor bomb. Using water allows the distinct flavors of the sausage and sweet potato to shine without being muddied by the sodium and celery notes of boxed broth.
Why You'll Love This Recipe
- Flavor Balance: The sweetness of the potatoes perfectly counteracts the spicy kick of the sausage and red pepper flakes.
- Budget Friendly: By using water instead of multiple cartons of chicken stock, you save money without sacrificing flavor.
- One-Pot Wonder: The meat, vegetables, and pasta all cook in the same pot, making cleanup a breeze.
- Texture Rich: You get the chew of the sausage, the softness of the potato, the bite of the pasta, and the silkiness of the cream in every spoonful.
Ingredients
- Italian Sausage: 12 oz of bulk spicy Italian sausage. If you can only find links, simply remove the casings before browning.
- Sweet Potato: 1 large sweet potato, peeled and cubed. Look for the orange-fleshed variety (often labeled as yams in US grocery stores) for the best sweetness.
- Tortellini: 8 oz package of refrigerated three-cheese tortellini (I used Buitoni). Refrigerated pasta cooks faster and has a better texture than dried.
- Tomato Paste: 1 tablespoon. This adds a layer of umami depth to the broth.
- Fresh Spinach: 4 oz. It adds color and nutrition without altering the flavor profile.
- Heavy Cream: ½ cup to finish the soup with a velvety texture.
- Aromatics: 5 cloves of minced garlic, fresh thyme leaves, and Italian seasoning.
- Spices: Paprika (regular or smoked), red pepper flakes, and salt (use cautiously).
- Water: 6 cups. Trust the process; water is all you need here.
How to Make Creamy Sausage Tortellini Soup
Browning the Sausage
Heat the olive oil in a large, high-sided pot (a Dutch oven is ideal) over medium heat. Add the crumbled sausage. Cook for several minutes, breaking it apart with a wooden spoon, until it is browned and cooked through. Once cooked, drain the excess grease from the pot. Leaving too much grease will result in an oily film on top of your soup. Season the meat with the Italian seasoning and paprika.
Building the Broth
Add the peeled, cubed sweet potatoes, minced garlic, red pepper flakes, and the tablespoon of tomato paste to the pot. Stir well to coat the potatoes and cook the raw edge off the tomato paste and garlic for about a minute. Pour in the 6 cups of water. Bring the mixture to a boil, stirring to ensure the tomato paste dissolves completely into the liquid.
Simmering the Vegetables
Once boiling, reduce the heat to a steady simmer and cover the pot with a lid. Cook for about 15 minutes. You want the sweet potatoes to be tender when pierced with a fork but not falling apart.
Cooking the Pasta
Remove the lid and drop in the refrigerated tortellini. Keep the soup at a gentle boil over medium heat for about 10 minutes (or according to your package instructions). The starch from the pasta will help thicken the soup slightly.
Finishing the Soup
Stir in the fresh spinach. It will look like a lot, but it will wilt into the broth in seconds. Remove the pot from the heat. Pour in the heavy cream and stir until the broth turns a beautiful creamy orange color. Taste the soup now. If your sausage was very salty, you might not need extra salt. If it needs a boost, add salt sparingly along with more red pepper flakes if you like heat. Top with fresh thyme leaves before serving.
Common Mistakes to Avoid
- Overcooking the Tortellini: Tortellini can go from al dente to mushy and unappetizing very quickly. Watch the clock once you drop them in.
- Using Dried Tortellini: This recipe is timed for fresh/refrigerated pasta. If you use dried tortellini from the shelf-stable aisle, you will need to increase the liquid and the cooking time significantly.
- Boiling the Cream: Always add the heavy cream after you remove the pot from the heat. Boiling dairy can cause it to separate or curdle, ruining the smooth texture.
Tips and Tricks for Success
Cut Potatoes Uniformly To ensure the sweet potatoes and pasta finish cooking at the same time, cut your potato cubes small-about ½ inch to ¾ inch. Large chunks will take too long to cook, leaving you with overcooked sausage.
Control the Spice This soup is designed to have a kick. If you are sensitive to spice or cooking for kids, use mild Italian sausage and omit the red pepper flakes. You can always add heat to individual bowls later.
The "Next Day" Thickening Tortellini will continue to absorb liquid as it sits. If you are making this for meal prep, the pasta will swell significantly overnight, and the soup will become more like a stew. It is still delicious, but be prepared for a change in texture.
Variations
- Kale Instead of Spinach: For a heartier green that holds its texture better in leftovers, swap the spinach for chopped curly kale. Add the kale about 5 minutes before the pasta is done so it has time to tenderize.
- Butternut Squash: If sweet potatoes aren't your favorite, butternut squash is an excellent substitute with a similar flavor profile.
- Dairy-Free: You can substitute full-fat coconut milk for the heavy cream. It adds a lovely richness that pairs well with the sweet potato and curry-adjacent spices.
How to Serve
This soup is incredibly filling on its own. I serve it simply with a slice of crusty sourdough bread or focaccia for dipping into the creamy broth. A light, acidic salad with a lemon vinaigrette helps cut through the richness of the sausage and cream.
Make Ahead and Storage
Storage: Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheating: Add a splash of water or milk when reheating on the stove, as the pasta will have soaked up much of the broth. Freezing: I do not recommend freezing soups containing cream or tortellini. The dairy separates, and the pasta becomes unpleasantly grainy and soft when thawed.
Recipe Notes / What I Learned
During testing, I found that "spicy" sausage varies wildly between brands. Some are barely peppery, while others pack a serious punch. Always taste the broth before adding the final pinch of red pepper flakes and salt.
Nutrition Snapshot
Estimated per serving: 550 calories, 35g fat, 22g protein, 38g carbohydrates.
Creamy Sausage Tortellini Soup
Equipment
- 1 Large, high-sided pot or Dutch oven
Ingredients
Group: Main Ingredients
- 12 oz sausage such as spicy Italian sausage, crumbled
- 1 tablespoon olive oil
- 1 tablespoon Italian seasoning
- 1 teaspoon paprika regular or smoked
- 1 large sweet potato or use 2 small, peeled, cubed
- 5 cloves garlic, minced
- ¼ teaspoon red pepper flakes
- 1 tablespoon tomato paste
- 6 cups water no chicken stock needed
- 8 oz tortellini three-cheese tortellini (refrigerated)
- 4 oz fresh spinach
- ½ cup heavy cream
- 4 tablespoons fresh thyme for topping
- salt to taste (use judgment due to salty sausage)
Instructions
- Heat olive oil in a large, high-sided pot over medium heat. Add crumbled sausage. Cook for several minutes over medium heat, stirring until the sausage is cooked through. Drain all grease. Sprinkle with Italian seasoning and paprika. Add peeled and cubed sweet potato, minced garlic, red pepper flakes, and tomato paste.
- Add **6 cups of water**. Bring to boil. Mix everything well, ensuring the tomato paste dissolves. Once the soup is boiling, reduce to simmer, cover the pot with a lid, and cook for **15 minutes** until the potatoes are cooked through.
- Add tortellini to the soup in the pot, cover with a lid and boil for **10 minutes** over medium heat (or according to package directions). Add spinach right in the end, stir in until it slightly wilts.
- Remove the soup from heat. Add the heavy cream and stir it in. Season with salt and more red pepper flakes (add spice especially if you did not use spicy sausage). Top with fresh thyme. (Note: Taste before salting, as the sausage may already provide enough salt.)
Notes
Nutrition
FAQs
Can I use chicken broth instead of water?
Can I use chicken broth instead of water? You can, but I advise against it. Chicken broth often makes this specific soup too salty because of the sausage. If you must use stock, use low-sodium vegetable broth and dilute it with water.
Do I have to peel the sweet potatoes?
Yes, for this soup texture, peeling is best. Sweet potato skins can be tough and fibrous when boiled, which distracts from the soft tortellini.
