Keto Lasagna Soup Recipe (Easy, Cheesy & Low Carb Comfort Food)

This Keto Lasagna Soup has all the rich, comforting flavors of traditional lasagna without the high-carb pasta or the work of assembling a layered casserole. It combines seasoned ground beef, Italian sausage, tomato broth, herbs, creamy cheeses, and your choice of low-carb noodles in one hearty pot.

It’s an easy option for cold evenings, busy weeknights, and meal prep because the soup comes together in about 40 minutes and tastes even better after the flavors have had time to develop.

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Why You’ll Love This Keto Lasagna Soup

• Ready in approximately 40 minutes
• Made in one pot
• Rich in protein
• Approximately 7 net carbohydrates per serving
• Easier than assembling traditional lasagna
• Perfect for meal prep
• Freezer-friendly when stored without delicate noodles or cheese topping
• Easy to customize with different proteins and low-carb noodle alternatives
• Naturally gluten-free when all packaged ingredients are certified gluten-free

Ingredients You’ll Need

Exact measurements are included in the recipe card below.

Ground beef: Adds hearty flavor and plenty of protein. Lean ground beef helps keep the soup from becoming overly greasy.

Italian sausage: Gives the broth more seasoning and richness. Choose mild or hot sausage and review the label for added sugar.

Onion and garlic: Create the savory base of the soup.

Marinara sauce: Use a sauce without added sugar and check the total carbohydrates per serving.

Tomato paste: Deepens the tomato flavor and helps give the broth more body.

Beef broth: Creates the soup base and complements the beef and sausage.

Italian seasoning, oregano, and basil: Recreate the familiar herb flavor of baked lasagna.

Ricotta cheese: Gives each bowl a creamy lasagna-style finish.

Cream cheese: Helps make the ricotta topping richer and smoother.

Mozzarella and Parmesan: Add melted cheese flavor and make the soup feel more like traditional lasagna.

Low-carb noodles: Hearts of palm, zucchini ribbons, cabbage ribbons, or rinsed konjac noodles can be used.

Equipment You’ll Need

Useful tools for this recipe include:

• Dutch oven or large soup pot
• Wooden spoon or silicone spatula
• Meat chopper
• Sharp chef’s knife
• Cutting board
• Medium mixing bowl
• Cheese grater
• Ladle
• Measuring cups and spoons
• Airtight meal-prep containers

Choosing the Best Low-Carb Noodles

Hearts of Palm

Hearts of palm noodles hold their shape well and create a texture that is closest to traditional pasta. Drain, rinse, and pat them dry before adding them to the soup.

Zucchini Ribbons

Use a vegetable peeler to make wide ribbons. Add them during the final two to three minutes so they don’t become mushy.

Cabbage Ribbons

Thinly sliced cabbage softens in the broth and creates a hearty, satisfying texture. It usually needs five to eight minutes of simmering.

Konjac Noodles

Konjac noodles are very low in digestible carbohydrates. Rinse them thoroughly and dry them in a skillet before adding them to reduce their packaged aroma.

Changing the noodle option will change the final texture and nutrition.

How to Make Keto Lasagna Soup

1. Brown the Meat

Heat the olive oil in a Dutch oven or large soup pot over medium heat.

Add the ground beef and Italian sausage.

Cook until browned, breaking the meat into small pieces as it cooks. Drain excess grease if necessary.

2. Add the Onion and Garlic

Add the diced onion and cook for approximately three to four minutes, until softened.

Stir in the minced garlic and cook for another 30 seconds, just until fragrant.

3. Build the Soup

Add the marinara sauce, tomato paste, beef broth, Italian seasoning, oregano, basil, onion powder, salt, and black pepper.

Stir until the tomato paste is fully incorporated.

Bring the soup to a gentle simmer.

4. Simmer

Reduce the heat to medium-low.

Simmer uncovered for approximately 18 to 20 minutes, stirring occasionally.

This gives the meat, tomatoes, broth, and herbs time to develop a richer flavor.

5. Prepare the Cheese Mixture

While the soup simmers, combine the ricotta, softened cream cheese, mozzarella, Parmesan, and chopped parsley in a medium bowl.

Mix until creamy and evenly blended.

If the mixture is too thick to spoon, add one tablespoon of warm broth from the soup.

6. Add the Low-Carb Noodles

Add your chosen noodle alternative near the end of cooking.

• Hearts of palm: simmer for approximately three to five minutes.
• Zucchini ribbons: simmer for approximately two minutes.
• Cabbage ribbons: simmer for approximately five to eight minutes.
• Konjac noodles: warm in the soup for approximately two to three minutes.

Avoid overcooking.

7. Taste and Adjust

Taste the broth and adjust the salt, pepper, or herbs.

Keep in mind that the cheese topping will add additional saltiness.

8. Serve

Ladle the hot soup into bowls.

Top each serving with a generous spoonful of the cheese mixture.

Finish with fresh basil, parsley, extra mozzarella, Parmesan, or red pepper flakes.

Tips for the Best Keto Lasagna Soup

Brown the meat well. Allowing the beef and sausage to develop color adds more flavor to the broth.

Drain excess grease. Too much fat can make the soup feel oily.

Check the marinara label. Tomato sauces can vary significantly in sugar, carbohydrates, and sodium.

Add delicate noodles last. Zucchini and hearts of palm can soften if simmered too long.

Use full-fat cheese. Full-fat ricotta and cream cheese create the richest topping.

Add cheese to each bowl. Keeping the ricotta mixture separate prevents it from completely disappearing into the broth.

Let leftovers rest overnight. The flavor often becomes deeper the next day.

Easy Variations

Creamy Keto Lasagna Soup

Stir ½ cup of heavy cream into the soup during the final five minutes.

Spicy Lasagna Soup

Use hot Italian sausage and add ¼ to ½ teaspoon of crushed red pepper flakes.

Chicken Lasagna Soup

Replace the beef and sausage with cooked shredded chicken. Add it after the broth begins simmering.

Spinach Lasagna Soup

Stir two cups of baby spinach into the soup during the final two minutes.

Mushroom Lasagna Soup

Sauté sliced mushrooms with the onion before adding the garlic.

Slow Cooker Lasagna Soup

Brown the beef and sausage first.

Transfer them to a slow cooker with the onion, garlic, marinara, tomato paste, broth, and seasonings.

Cook on low for six to seven hours or high for three to four hours.

Add the noodle alternative near the end and serve with the cheese mixture.

What to Serve With Keto Lasagna Soup

Pair it with:

• Caesar salad without croutons
• Garlic roasted broccoli
• Roasted asparagus
• Keto garlic bread
• Parmesan zucchini fries
• Air-fryer Brussels sprouts
• Caprese salad
• Cheese crisps
• Sautéed spinach
• A simple mixed-green salad

How to Store Leftovers

Allow the soup to cool before transferring it to an airtight container.

Store the soup and cheese mixture separately in the refrigerator for up to four days.

Keeping the topping separate helps preserve its texture.

How to Reheat Keto Lasagna Soup

Reheat the soup gently in a saucepan over medium-low heat until hot.

Add a small splash of broth if it has thickened.

Individual portions can also be reheated in the microwave, stirring between intervals.

Add the cheese mixture after reheating.

Can You Freeze Keto Lasagna Soup?

Yes, but freeze the soup without the cheese mixture and without zucchini noodles.

Allow the soup to cool completely, then freeze it in airtight containers for up to three months.

Thaw overnight in the refrigerator and reheat gently.

Add fresh noodles and cheese topping before serving.

Frequently Asked Questions

Is lasagna soup keto-friendly?

It can be when made with marinara without added sugar, low-carb noodle alternatives, and ingredients that fit your carbohydrate goals.

Which low-carb noodles work best?

Hearts of palm offer the most pasta-like texture. Zucchini and cabbage work well for vegetable-based options, while konjac noodles contain very few digestible carbohydrates.

Can I make it without ricotta?

Yes. Cottage cheese, mascarpone, or additional cream cheese may be used. Drain cottage cheese first if it contains excess liquid.

Can I prepare it ahead of time?

Yes. Prepare the soup and cheese topping up to two days ahead and store them separately.

Why is my soup watery?

The marinara or vegetables may have released extra liquid, or the soup may not have simmered long enough. Let it simmer uncovered for a few additional minutes.

Is ricotta cheese keto-friendly?

Ricotta can fit into a low-carbohydrate eating plan in moderate portions. Check the label because carbohydrate amounts vary by brand.

Make Keto Meal Planning Easier

Keto Recipe Vault gives you access to searchable keto soups, dinners, breakfasts, snacks, desserts, drinks, air-fryer recipes, casseroles, and comfort foods.

Keto Flow helps you organize those recipes into a realistic weekly plan, build a grocery list, track meals, and stay consistent without trying to remember everything.