Keto and lasagna? Who says that’s possible? This Keto Lasagna Soup is a low-carb perfection that offers the flavors of a lasagna soup with only 10.7 grams of net carbs per serving. It’s also gluten-free and high-protein.

You get home from a heavy day at work, and you need comforting food. The first thing you think about is having a nice warm plate of lasagna.

But then, you remember that you are following a keto or low-carb diet. So, what to do?

What if I told you that you can still get the rich flavors of a classic lasagna but transformed into a warm bowl of soup… and that it’s low carb?

This lasagna soup combines the savory taste of Italian sausage and ground beef with gooey cheese and aromatic herbs. This soup is truly a delightful dining experience everyone is going to enjoy. 

One of the things I love about this meal is that it’s a one-pot dish. This means that you can forget about having to wash an endless pile of dirty dishes after you finish cooking.

And, the best part is that it’s going to take less than 30 minutes to make.

So, not only are you saving time during cooking but also after cooking. This means you’ll have a healthy, low-carb meal in a matter of minutes.

Ingredients and Substitutes

Vegetable oil (1 tbsp) – You can also use olive oil or coconut oil. If you decide to use olive oil, make sure you use olive oil and not extra virgin olive oil.

Italian sausage, ground (1 lb) – If you want a different flavor profile, you can use different types of sausages. And, for a plant-based option, you can use plant-based sausages.

Lean ground beef (½ lb) – You can also substitute for ground turkey or chicken, or you can use plant-based ground meat or tofu. 

White onion, chopped (1 medium) – While I love the taste of yellow onion, you can also use red or yellow onions. If you don’t feel like chopping, you can use onion flakes.

Garlic, minced (6 cloves) – I love the taste of fresh garlic, but if you don’t have any, you can use garlic powder or flakes. (To help you save time in the kitchen, try keeping a jar of minced garlic in olive oil).

Tomato paste (2 tbsp) – If you don’t have tomato paste, you can use tomato sauce or tomato puree.

Crushed tomatoes (1 14 oz can) – I’ve also tried using fresh tomatoes and they provide a nice taste. You can also use roasted tomatoes for a more complex flavor profile.

Tomato passata (2 cups) – If tomato passata isn’t available, you can use more crushed tomatoes or a blend of tomato sauce and water.

Chicken broth, low sodium (2 1/2 cups) – You can also use beef or vegetable broth.

Fennel seeds (1 tsp) – They provide a nice hint of anise flavor. You can remove them if you don’t like the taste or if you don’t have fennel seeds.

Italian seasoning (2 tsp) – This adds a punch of flavor. I recommend keeping this important ingredient.

Onion powder (2 tsp) – You can also use onion flakes.

Sea salt (1.5 tsp)

Black pepper (1/2 tsp)

Mozzarella, shredded (8 oz) – They add some creaminess to the soup. You can replace it with other cheeses, like cheddar or asiago (or a combination of all of them).

Parmesan, grated (½ cup) – For a plant-based option, you can use nutritional yeast.

Fresh parsley, chopped (1/2 cup) – If you don’t have parsley, you can use fresh basil or cilantro.

Garnish

Parmesan, grated

Parsley, chopped

How to Make Keto Lasagna Soup

Step 1. Grab a large pot and heat it over medium-high heat. Add the vegetable oil, Italian sausage, ground beef, and white onion.

Step 2. Break the ground meat apart and cook it until the meat browns, which should roughly take 7-8 minutes.

Step 3. Add the garlic and cook for another minute.

Step 4. Add the tomato paste, crushed tomatoes, tomato passata, chicken broth, fennel seeds, Italian seasoning, onion powder, salt, and black pepper.

Step 5. Stir all the ingredients until they are well-blended.

Step 6. Bring the soup to a boil and then lower the heat. Simmer for around 20 minutes or so.

Step 7. Once it’s ready, garnish with parmesan and parsley before serving.

Sides for Lasagna Soup

Do you want to pair this delicious meal with the best sides? Here are some of my favorite options.

• Keto-friendly garlic breadsticks
• Cheesy garlic broccoli
• Zucchini noodles
• Cauliflower rice
• Kale Caesar salad
• Air fryer asparagus
• Butternut squash

Other Ingredients You Can Use

While I recommend keeping the recipe as it is, you can always get creative and modify it to make it your own. Here are some ingredients you can add to create a new meal experience.

• Roasted bell peppers
• Bacon bits
• Ricotta cheese
• Basil
• Mushrooms or zucchini

Storage and Leftovers

If you have some leftovers, lucky you! To keep the soup fresh, place it in an airtight container (once it cools down) and place it in the fridge for 3-4 days.

You can also keep it in the freezer for up to 3-4 months. I do recommend keeping it in individual portions to avoid spoilage.

Once you are ready to eat it, thaw it overnight and cook it on the stove.

Other Keto Soups You’ll Love

• Creamy Taco Soup
• Creamy Crack Chicken Soup
• Low-Carb Cheeseburger Soup