Keto Lasagna Soup is a delightful dish that combines all the rich, hearty flavors of traditional lasagna but with a low-carb twist. This comforting meal offers layers of taste without the heavy pasta, making it perfect for those following a ketogenic diet or anyone looking for a flavorful, nutritious dish. With each spoonful, you’re treated to savory Italian sausage, fresh vegetables, and creamy cheeses, all simmered to perfection for that unmistakable lasagna flavor, but in a cozy soup form.
Why We Love This Keto Lasagna Soup Recipe
This Keto Lasagna Soup stands out not just for its delicious flavor, but also for its simplicity and versatility. You can whip it up on a busy weeknight and still enjoy the warm comfort of a home-cooked meal. The blend of spices and ingredients makes it a crowd-pleaser, suitable for family dinners or gatherings. You have the richness of Italian sausage combined with bright bell peppers and leafy spinach that will satisfy your cravings without straying from your dietary goals. Plus, it’s a one-pot dish, which means minimal cleanup afterward, leaving you more time to relax and enjoy your culinary creation.
Ingredients about Keto Lasagna Soup
- 1 lb Italian sausage (mild or spicy)
- 1 tbsp olive oil
- 1 small onion, chopped
- 3 cloves garlic, minced
- 1 red bell pepper, chopped
- 1 green bell pepper, chopped
- 4 cups chicken broth
- 1 can (14 oz) diced tomatoes, undrained
- 3 tbsp tomato paste
- 1 tsp dried oregano
- 1 tsp dried basil
- 1/2 tsp crushed red pepper flakes (optional)
- 1/2 cup heavy cream
- Salt and pepper to taste
- 2 cups fresh spinach leaves
- 1/2 cup ricotta cheese
- 1 1/2 cups shredded mozzarella cheese
- 1/4 cup grated Parmesan cheese
- Fresh basil for garnish (optional)
How to Make Keto Lasagna Soup Directions
Start your cooking adventure by heating olive oil in a large pot over medium heat. Once the oil is hot, add the Italian sausage, breaking it apart with a spatula or wooden spoon as it cooks. Aim for it to brown evenly, which should take about 5 to 7 minutes. This step is key because the sausage will release its flavorful oils into the pot, forming a tasty base for your soup.
Next, add the chopped onion and minced garlic to the pot. Sauté these ingredients together for about 3 minutes until they become fragrant and the onion softens. The aroma of onion and garlic together is simply irresistible and sets the stage for the other flavors to come.
After the onion and garlic have had a moment to meld, stir in the chopped red and green bell peppers. Allow them to sauté for an additional 5 minutes, or until they have softened. The vibrant colors of the bell peppers will not only brighten your soup but also pack it with essential nutrients.
Once the bell peppers are tender, it’s time to pour in the chicken broth, along with the can of diced tomatoes (make sure to include the liquid). Add in the tomato paste, oregano, basil, and crushed red pepper flakes if you crave a little heat. Bring the mixture to a boil, then reduce the heat and let it simmer for about 15 minutes. This simmering step allows the ingredients to meld beautifully, creating a robust and flavorful broth.
After your soup has simmered and the flavors have developed, stir in the heavy cream. Season it with salt and pepper to taste. The heavy cream will add a luscious creaminess to the broth that mirrors the cheesy layers of traditional lasagna.
Next, it’s time to bring some greens into the mix. Toss in the fresh spinach leaves, stirring them until they are just wilted. This step not only enhances the soup’s nutrition, but it also adds a pop of color and freshness to your bowl.
To make this Keto Lasagna Soup even more decadent, stir in the ricotta cheese until it is thoroughly blended into the soup. This brings that signature lasagna texture to your dish. The final touch is to sprinkle the shredded mozzarella and grated Parmesan over the top. Cover the pot and let it simmer for another 5 minutes until the cheese melts beautifully into your soup.
Serve your Keto Lasagna Soup hot, garnished with fresh basil if you wish. The fresh basil enhances the Italian flavors and makes your bowl look as great as it tastes.
How to Serve Keto Lasagna Soup
When it comes to serving your Keto Lasagna Soup, there are plenty of delightful options. You may want to have some extra cheese on hand, such as Parmesan or mozzarella, for those who wish to sprinkle more on top. A fresh basil garnish can elevate the presentation and add a burst of flavor.
You can enjoy this soup on its own for a satisfying meal or pair it with a simple side salad for a more rounded dining experience. A light, fresh salad will complement the richness of the soup perfectly, providing a balance that makes your meal feel complete without adding unnecessary carbs.
For an added touch, consider offering some keto-friendly breadsticks or a slice of low-carb bread on the side. If you’re hosting a gathering, serve the soup in individual bowls, and allow guests to customize their own toppings, creating a fun interactive experience.
Expert Tips: Keto Lasagna Soup
Elevate your cooking with these expert tips for making the perfect Keto Lasagna Soup. First, opt for high-quality sausage, as it significantly influences the flavor of the base. You can choose between mild or spicy Italian sausage depending on your preference. For added depth, consider browning the sausage ahead of time and draining any excess grease.
When sautéing the onions and garlic, watch them closely to prevent burning, as this could impart a bitter taste. Remember, the addition of heavy cream is crucial to achieving the desired creaminess, so don’t skip that step.
If you prefer a thicker soup, you can add more tomato paste at the outset or even toss in a low-carb thickening agent like xanthan gum. This will give your soup more body, resembling a lasagna more closely.
Always taste and adjust your seasoning as you go. Each brand of broth and sausage can vary in salt content, so make sure you fine-tune the flavors to your liking. And lastly, don’t forget the finishing touch: fresh herbs not only brighten the dish but also keep your meal feeling fresh and lively.
How to Store Keto Lasagna Soup
Storing your Keto Lasagna Soup is a breeze. Allow any leftovers to cool completely before transferring them to an airtight container. This soup can be refrigerated for up to 4 days, making it perfect for meal prep or leftovers. Simply reheat it on the stovetop over medium heat until warmed through, stirring occasionally to prevent sticking.
If you’d like to store it for a longer period, consider freezing the soup. Transfer cooled soup to freezer-safe containers, leaving some space at the top for expansion. It can be frozen for up to 3 months. When you are ready to enjoy it again, thaw the soup overnight in the refrigerator before reheating on the stovetop or in the microwave.
Variation of Keto Lasagna Soup
While the original recipe for Keto Lasagna Soup is delicious on its own, feel free to experiment and customize it to suit your taste buds. You could add other vegetables like mushrooms, zucchini, or even cauliflower for added nutrition and texture.
If you’re a fan of spice, consider incorporating diced jalapeños or using spicy sausage to give your soup a greater kick. For a richer sauce, adding a dash of Worcestershire sauce or Italian seasoning can amplify the overall flavor.
Vegetarians can easily modify this recipe by substituting sausage with a meat-free option or increased vegetables. Tofu or tempeh can add protein while keeping the dish plant-based.
If you want a more cheesy flavor, try blending cream cheese into the soup along with the ricotta for a creamier and richer experience. Your creativity will make this dish truly your own!
FAQ
What makes Keto Lasagna Soup low in carbs? Keto Lasagna Soup is low in carbs because it replaces traditional pasta with fresh vegetables. Ingredients like spinach, bell peppers, and ricotta cheese allow you to enjoy the flavors of lasagna without all the carbs from pasta.
Can I prepare Keto Lasagna Soup in advance? Yes! You can make Keto Lasagna Soup ahead of time. It stores well in the refrigerator for up to 4 days and freezes nicely for up to 3 months. Just reheat it before serving.
How can I make Keto Lasagna Soup spicy? To give your Keto Lasagna Soup a spicy kick, consider using spicy Italian sausage or adding crushed red pepper flakes and diced jalapeños to your desired heat level.
Can I use other meats in Keto Lasagna Soup? Absolutely! While the recipe calls for Italian sausage, you can substitute it with ground turkey, ground chicken, or any type of ground meat you prefer.
Is Keto Lasagna Soup suitable for meal prep? Yes, Keto Lasagna Soup is perfect for meal prep. It keeps well in the refrigerator and reheats beautifully, making it a great option for packed lunches or dinners during the week.

Keto Lasagna Soup
Ingredients
Main Ingredients
- 1 lb Italian sausage (mild or spicy) Choose a high-quality sausage for the best flavor.
- 1 tbsp olive oil For sautéing the vegetables and sausage.
- 1 small onion, chopped Adds flavor to the base of the soup.
- 3 cloves garlic, minced Enhances the overall flavor.
- 1 cup red bell pepper, chopped Adds color and nutrition.
- 1 cup green bell pepper, chopped Adds color and nutrition.
- 4 cups chicken broth Base of the soup.
- 1 can (14 oz) diced tomatoes, undrained Provides additional flavor and texture.
- 3 tbsp tomato paste Thickens the soup and enhances flavor.
- 1 tsp dried oregano For seasoning.
- 1 tsp dried basil For seasoning.
- 1/2 tsp crushed red pepper flakes Optional for spice.
- 1/2 cup heavy cream Adds creaminess to the soup.
- to taste Salt and pepper For seasoning.
- 2 cups fresh spinach leaves Adds nutrition and color.
- 1/2 cup ricotta cheese For creamy texture.
- 1 1/2 cups shredded mozzarella cheese To top the soup.
- 1/4 cup grated Parmesan cheese To top the soup.
- to taste Fresh basil for garnish Optional for garnish.
Instructions
Cooking
- Heat olive oil in a large pot over medium heat.
- Add Italian sausage, breaking it apart as it cooks, for about 5 to 7 minutes until browned.
- Stir in chopped onion and minced garlic; sauté for 3 minutes until fragrant.
- Add chopped red and green bell peppers, sauté for an additional 5 minutes until softened.
- Pour in chicken broth, canned tomatoes (with liquid), tomato paste, oregano, basil, and red pepper flakes if desired.
- Bring to a boil, then simmer for 15 minutes.
- Stir in heavy cream and season with salt and pepper.
- Add spinach leaves and stir until just wilted.
- Incorporate ricotta cheese until fully blended into the soup.
- Sprinkle mozzarella and Parmesan over the top, cover, and simmer for another 5 minutes until cheese melts.
- Serve hot, garnished with fresh basil if desired.
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