Keto Tuscan Sausage Soup

This Keto Tuscan Sausage Soup is a rich, cozy, and comforting one-pot meal made by simmering Italian sausage, onion, garlic, and leafy greens in a creamy chicken broth and heavy cream base. It delivers savory depth from spicy sausage, velvety texture from cream, and vibrant color from kale or spinach, without the potatoes or beans found in traditional Tuscan soups. Each bowl is hearty, filling, and low in carbs, making it a perfect warm and satisfying dinner that supports your keto goals.

Course Dinner, Lunch, Main Course, Soup

Cuisine Italian, Keto, Low Carb

Keyword creamy sausage soup, Italian sausage soup, kale soup, keto soup, keto tuscan sausage soup, low carb soup, one pot dinner

Prep Time 15

Cook Time 25

Total Time 40

Servings servings

Calories 420kcal

Equipment

Large Pot or Dutch Oven
Wooden Spoon
Chef's knife
Cutting board
measuring cups and spoons
ladle

Ingredients

Soup Base

1 pound Italian sausage use mild or hot, casings removed if using links
2 tablespoons olive oil or avocado oil, if needed depending on sausage fat
1/2 cup yellow onion finely diced
3 cloves garlic minced
4 cups chicken broth low-sodium
1 cup water
1 teaspoon Italian seasoning
1/2 teaspoon crushed red pepper flakes optional, for heat
1 teaspoon sea salt or to taste
1/2 teaspoon black pepper or to taste

Creamy Finish and Greens

1 cup heavy whipping cream
4 cups kale stems removed and leaves chopped, or use baby spinach
1/2 cup grated Parmesan cheese plus more for serving, optional
2 tablespoons fresh parsley chopped, for garnish

Instructions

Heat a large pot or Dutch oven over medium heat and add the Italian sausage, breaking it into small crumbles as it cooks.
Cook the sausage until browned and cooked through, then use a spoon to remove excess grease if there is more than a thin coating left in the pot, adding olive oil if the pot looks dry.
Add the diced onion to the pot and sauté in the sausage drippings and oil for about 3 to 4 minutes until softened and translucent.
Stir in the minced garlic and cook for about 30 seconds until fragrant, being careful not to let it brown.
Pour in the chicken broth and water, then stir in the Italian seasoning, crushed red pepper flakes, sea salt, and black pepper until well combined.
Bring the soup to a gentle boil over medium high heat, then reduce the heat to a simmer and cook for about 10 minutes to allow the flavors to meld.
Add the chopped kale to the pot, stirring it into the hot broth until it wilts and is submerged, then simmer for another 5 to 7 minutes until the greens are tender.
Reduce the heat to low and slowly pour in the heavy whipping cream while stirring continuously to create a smooth, creamy base without curdling.
Stir in the grated Parmesan cheese until melted and fully incorporated, then taste the soup and adjust salt and pepper as needed to suit your preference.
Ladle the Keto Tuscan Sausage Soup into bowls and garnish with chopped fresh parsley and additional Parmesan if desired, serving hot.

Notes

For extra convenience, use prewashed chopped kale or baby spinach, adding spinach during the last few minutes of cooking as it wilts much faster than kale. Choose high quality Italian sausage without added sugar or fillers to keep carbs low and flavor high. If you prefer an even creamier soup, you can stir in an additional splash of heavy cream just before serving. Leftovers keep well in the refrigerator for up to 4 days and can be reheated gently on the stovetop over low heat, stirring occasionally to maintain a silky texture. The soup can also be frozen in freezer safe containers; thaw overnight in the refrigerator and reheat slowly, adding a bit of extra cream or broth if needed to restore the consistency.

Nutrition