Low-Carb Italian Sausage Soup

Low-Carb Italian Sausage Soup-Instant Pot Recipe

Take the chill out of winter with this delicious Low-Carb Italian Sausage Soup recipe. This soup is pure comfort food, but can still be part of a low-carb, keto, Atkins, Whole-30, Paleo, diabetic, or Banting diet. 

Course Soup
Cuisine Italian, low-carb
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 6
Author Annissa Slusher


  • 1 pound ground Italian sausage
  • 4 ounces onion chopped
  • 2 stalks celery chopped
  • 2 ounces carrot diced
  • 15 ounces tomato sauce
  • 2 cloves garlic crushed
  • 32 ounces beef broth low-sodium and preferably organic
  • 1 tablespoon fresh basil (or 1 teaspoon dried)
  • 1/4 teaspoon dried oregano
  • 1/4 teaspoon red pepper flakes (optional)
  • 1/4 teaspoon black pepper (freshly ground)
  • 1/2 - 1 teaspoon sea salt
  • Optional: additional basil chopped for garnish


  1. Place the inner pot in your Instant Pot. Select the sauté function of your Instant Pot to preheat the pot. When the word "hot" appears in the display, add the sausage. Break the sausage up with a spoon. Brown the sausage, stirring occasionally. If desired, drain extra fat from the pot.

  2. Stir in the onion, celery, and carrot. Cook, stirring occasionally, until they begin to soften.

  3. Stir in the tomato sauce, garlic, beef broth, basil, oregano, red pepper flakes, black pepper, and 1/2 teaspoon of the sea salt. (omit salt if using regular broth instead of low-sodium). 

  4. Close and lock the lid. Set steam release in seal position. Select the Meat Stew setting. Use the +- buttons to adjust the time to 30 minutes.

  5. When the cycle is finished, release the pressure. I use the quick release method for this. Refer to your manual if you are unsure how to do this. 

  6. Taste and adjust seasoning. I add the second half teaspoon of salt at this stage, but you should add according to your tastes and needs. Sprinkle a bit of chopped basil on top of each bowl if desired.

Recipe Notes

Serving size: 1/6th of the recipe

Per serving: 

Calories: 294

Fat (g): 20

Carbs (g): 9

Fiber (g): 2

Protein (g): 20

Net carbs (g): 7