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Keto Lasagna Soup Recipe

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3.9 from 63 reviews

This keto lasagna soup is a comforting, low-carb twist on the traditional Italian lasagna, combining savory Italian sausage, rich marinara sauce, and creamy cheeses in a hearty, flavorful broth perfect for a cozy meal.

  • Total Time: 1 hour 20 minutes
  • Yield: 6 servings

Ingredients

Soup Ingredients

  • 1 medium onion, diced
  • 2 cloves garlic, minced
  • 1 lb ground Italian sausage
  • 4 cups vegetable stock
  • 2½ cups marinara sauce
  • 2 tbsp butter
  • ½ cup heavy cream
  • Sea salt and ground black pepper, to taste

Garnish

  • ½ cup shredded Parmesan cheese
  • ½ cup full-fat ricotta cheese (plus more for garnish)
  • ¼ cup chopped fresh basil

Instructions

  1. Heat Butter: Heat butter in a large stockpot over medium-low heat until melted and shimmering.
  2. Sauté Aromatics: Add diced onion, minced garlic, and a pinch of salt and pepper to the pot. Cook, stirring occasionally, until the onion becomes translucent and the garlic is fragrant, about 3-5 minutes.
  3. Cook Sausage: Increase heat to medium and add the ground Italian sausage to the pot. Brown the sausage thoroughly by breaking it apart with a spatula, ensuring it’s cooked evenly and no pink remains.
  4. Add Liquids: Pour in the vegetable stock and marinara sauce, stirring to combine all ingredients well. Bring the mixture to a boil over medium-high heat.
  5. Simmer Soup: Reduce heat to maintain a gentle simmer. Let the soup cook for 30 to 45 minutes, stirring occasionally, to meld and deepen the flavors.
  6. Finish with Cream: After simmering, reduce the heat to low and stir in the heavy cream. Mix until fully incorporated and heated through.
  7. Serve and Garnish: Ladle the soup into bowls and top with spoonfuls of ricotta cheese, a sprinkle of shredded Parmesan, and fresh chopped basil for a rich, flavorful finish.

Notes

  • Use full-fat dairy ingredients to keep the soup rich and maintain its keto-friendly profile.
  • For a spicier soup, choose spicy Italian sausage or add red pepper flakes during cooking.
  • Fresh basil adds brightness; if unavailable, dried basil can be used but added earlier in cooking.
  • Leftovers can be stored in the refrigerator for up to 3 days or frozen for longer storage.
  • Author: Madelynn
  • Prep Time: 15 minutes
  • Cook Time: 1 hour 5 minutes
  • Category: Soup
  • Method: Stovetop
  • Cuisine: Italian
  • Diet: Low Carb