Instant Pot Creamy Keto Tuscan Soup (30-Minute Low-Carb Recipe)

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Enjoy the deep, savory flavors of a slow-simmered Italian classic in a fraction of the time with this Instant Pot Creamy Keto Tuscan Soup. This recipe is the perfect blend of comfort and dietary compliance, delivering a rich, creamy broth loaded with flavorful Italian sausage, vibrant sun-dried tomatoes, and fresh kale—all without relying on high-carb potatoes.

This Instant Pot Keto Tuscan Soup is a true 30-minute wonder. By using the pressure cooker, we compress hours of simmering time into just minutes, ensuring the broth and spices deeply infuse the sausage and liquid. The final addition of heavy whipping cream makes this keto Tuscan soup recipe incredibly rich and velvety, proving that eating low-carb doesn’t mean sacrificing ultimate comfort.

Why You’ll Love This Soup

• 30-Minute Speed: Quick cooking time thanks to the Instant Pot, perfect for a busy weeknight.
• Keto & Low-Carb Approved: Naturally low in carbohydrates, focusing on protein and healthy fats.
• Ultimate Flavor: Features the classic Tuscan profile (sausage, sun-dried tomatoes, garlic, oregano) in a creamy base.
• One-Pot Efficiency: Everything, from browning the meat to finishing the cream, happens in the Instant Pot liner.

Ingredients

• 1 Tbsp Olive Oil
• 1 lb Hot or Mild Italian Sausage, bulk or casings removed
• 1 Large Onion, chopped
• 3 cloves Garlic, minced
• ½ cup Sun-Dried Tomatoes (oil-packed, drained and chopped)
• 6 cups Low-Sodium Chicken Broth
• 1 tsp Dried Oregano
• 1 tsp Dried Basil
• Salt and Black Pepper, to taste
• To Finish:
  • ¾ cup Heavy Whipping Cream
  • 1 bunch Kale (leaves stripped and chopped)
  • ¼ cup Freshly Grated Parmesan Cheese (optional, for serving)

Instructions (Instant Pot Method)

1. Brown Sausage and Sauté: Set the Instant Pot to the Sauté function. Add the olive oil and Italian sausage. Cook, crumbling the meat, until browned (3–5 minutes). Drain any excess grease. Add the chopped onion and cook until softened (about 3 minutes).
2. Add Aromatics and Deglaze: Stir in the minced garlic, oregano, and basil. Cook for 30 seconds. Pour in 1 cup of the chicken broth and use a wooden spoon to scrape up any browned bits (fond) from the bottom of the pot.
3. Pressure Cook: Stir in the remaining 5 cups of chicken broth and the sun-dried tomatoes. Lock the lid and move the vent to the Sealing position. Select Manual/Pressure Cook on High for 5 minutes.
4. Release Pressure: Once cooking is complete, allow the pressure to Natural Release (NR) for 5 minutes, then quickly switch the vent to the Venting position (Quick Release) to release the remaining pressure.
5. Add Cream and Greens: Switch the Instant Pot back to the Sauté (low) function. Stir in the heavy whipping cream and the chopped kale. Cook for 3–5 minutes until the kale is tender-crisp and the soup is heated through.
6. Serve: Ladle into bowls. Garnish with freshly grated Parmesan cheese.

Stovetop Method

1. Brown Meat/Sauté: Brown sausage and onion in a Dutch oven. Add garlic and herbs.
2. Simmer: Add broth and sun-dried tomatoes. Bring to a boil, then reduce heat and simmer for 20 minutes.
3. Finish: Stir in the heavy cream and kale. Cook until the kale wilts (about 5 minutes).

Storage and Expert Tips

• Sausage is the Key: Use flavorful Italian sausage (mild or hot). The fat and seasoning from the sausage are essential for the rich flavor base.
• Cream Stability: Do not pressure cook the heavy cream. Adding it at the end ensures the soup remains velvety and prevents the dairy from curdling under high pressure.
• Kale Tenderizing: Kale takes longer to soften than spinach. Adding it before the cream (Step 5) and giving it a few minutes to cook on Sauté yields the best texture. You can substitute spinach, but add it just before serving.
• Salt Control: Italian sausage and chicken broth are both high in sodium. Use low-sodium broth and season the soup with salt only after the cooking process is complete.

Variations

• Extra Veggies: Stir in diced radishes (great low-carb potato substitute) or cauliflower florets with the broth in Step 3.
• Spicy Kick: Use hot Italian sausage or add a pinch of crushed red pepper flakes during the Sauté stage.
• Dairy Swap: Substitute the heavy cream with half-and-half (for a thinner sauce) or full-fat coconut milk (for a dairy-free option).

For days when you have absolutely no time to cook, make sure you bookmark our definitive guide to 15 quick 30-minute soup recipes.

Serving Suggestions

• Low-Carb: Serve with a side of low-carb garlic bread or a simple side salad.
• Crusty Bread: Serve with crusty artisan bread for dipping into the rich broth.

Frequently Asked Questions

Q: Can I use frozen Italian sausage in the Instant Pot? A: It is not recommended. You must brown the sausage first to achieve the best flavor. However, if you must use frozen sausage, add 1/2 cup of broth to the pot, place the frozen sausage on top, and cook under pressure until thawed, then drain and proceed with the Sauté steps.

Q: What can I use instead of kale? A: You can substitute the kale with an equal amount of fresh baby spinach. Stir the spinach in at the very end, as it wilts instantly, and serve immediately.

Q: Can I freeze this Instant Pot low carb soup? A: Yes, but freeze only the soup base. Freeze the soup before adding the heavy cream and kale. Thaw the soup base, reheat, and then stir in the cream and fresh kale before serving.

Q: How do I prevent the “BURN” warning when using the Sauté function with tomato products? A: Solution: Ensure you scrape the bottom of the Instant Pot well when deglazing with the broth (Step 2) to remove any stuck bits of meat or tomato paste. If you get the burn warning, add another ½ cup of liquid and stir vigorously.