Low Carb Lasagna Soup (Keto-Friendly Recipe)

Lasagna Comfort Without the Carbs

Craving the taste of a rich, cheesy lasagna—but trying to stick to a low carb or keto lifestyle?

Look no further than this Low Carb Lasagna Soup. It takes everything you love about traditional lasagna—the hearty meat sauce, creamy cheese, and Italian herbs—and transforms it into a satisfying, one-pot, keto-friendly soup. No noodles, no guilt, just pure flavor.

Perfect for cozy weeknight meals, meal prep, or even serving to guests (they won’t miss the carbs!), this soup is:

• Keto-friendly

• Gluten-free

• Pork-free

• Alcohol-free

• Ultra-satisfying

• Simple to make

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🍅 Why You’ll Love This Keto Lasagna Soup

✅ No pasta, no problem — zucchini ribbons or palmini make the perfect low-carb noodle substitute.
✅ Ultra cheesy — with ricotta, mozzarella, and Parmesan.
✅ Ready in under 45 minutes.
✅ One-pot meal = less cleanup.
✅ Perfect for keto, gluten-free, or low-carb diets.
✅ Freezer- and meal-prep friendly.

This soup satisfies even the deepest lasagna cravings without sabotaging your goals.

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🛒 Ingredients

Servings: 6
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40–45 minutes

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🥘 For the Soup:

• 1 tablespoon olive oil

• 1 pound ground beef or ground turkey

• 1 medium yellow onion, diced

• 3 cloves garlic, minced

• 1 teaspoon dried basil

• 1 teaspoon dried oregano

• ½ teaspoon onion powder

• ½ teaspoon garlic powder

• ¼ teaspoon red pepper flakes (optional)

• Salt and black pepper to taste

• 2 tablespoons tomato paste

• 1 (15 oz) can tomato sauce (no sugar added)

• 1 (14.5 oz) can diced tomatoes (no sugar added)

• 3½ cups low-sodium beef broth

• 1 medium zucchini, spiralized or sliced into thin ribbons (or use 1 can palmini noodles, rinsed)

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🧀 For the Cheese Mixture:

• ¾ cup ricotta cheese

• 1½ cups shredded mozzarella cheese

• ½ cup grated Parmesan cheese

• Fresh basil or parsley for garnish

🧑‍🍳 For dairy-free keto: use dairy-free alternatives such as almond ricotta and coconut-based mozzarella.

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🔪 How to Make Low Carb Lasagna Soup

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🔥 Step 1: Brown the Meat

In a large pot or Dutch oven, heat the olive oil over medium heat. Add the ground beef or turkey and cook until browned, about 6–8 minutes. Break up the meat as it cooks.

Drain excess fat if needed, then stir in the diced onions. Sauté for 3–4 minutes until softened.

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🧄 Step 2: Add Garlic and Seasoning

Add the garlic and cook for 30 seconds until fragrant. Then stir in:

• Dried basil

• Oregano

• Garlic powder

• Onion powder

• Red pepper flakes (if using)

• Salt and pepper to taste

This builds the foundational flavor.

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🍅 Step 3: Add Tomato Ingredients

Stir in:

• Tomato paste

• Tomato sauce

• Diced tomatoes

• Beef broth

Mix well, scraping the bottom to release any browned bits (extra flavor!). Bring to a gentle boil, then reduce heat to medium-low and simmer uncovered for 10–12 minutes to allow the flavors to develop.

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🥒 Step 4: Add Zucchini or Palmini Noodles

Add your zucchini noodles (zoodles) or palmini noodles. Simmer for an additional 5–8 minutes, until the noodles are tender but not mushy.

⚠️ Zucchini cooks quickly—don’t overcook or they’ll disintegrate.

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🧀 Step 5: Mix the Cheese Topping

While the soup simmers, mix the ricotta, half the mozzarella, and 2 tablespoons of Parmesan in a small bowl. Add salt and black pepper to taste.

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🍽️ Step 6: Serve and Garnish

Ladle soup into bowls and top each with a spoonful of the ricotta mixture. Sprinkle with more mozzarella and Parmesan, then garnish with fresh basil or parsley.

Let the cheese melt slightly before serving for that ooey-gooey lasagna texture.

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🧊 Storage & Reheating

🧁 Refrigerator:

Store in an airtight container for up to 4 days. Reheat on the stovetop or in the microwave. Add a splash of broth if the soup thickens.

❄️ Freezer:

Freeze in individual portions (without cheese topping) for up to 2 months. Reheat, then add fresh cheese before serving.

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🔄 Variations & Customizations

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🥬 Add More Veggies:

Boost the nutrition with:

• Chopped spinach

• Mushrooms

• Kale

• Bell peppers

Add during the last 5–10 minutes of cooking.

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🌶️ Add Heat:

Amp up the spice with more red pepper flakes, cayenne pepper, or a pinch of chili powder.

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🫘 Add Protein (Beyond Meat):

For more protein, stir in:

• Cooked shredded chicken

• Plant-based crumbles

• Chickpeas (note: not strict keto, but low carb)

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🧀 Make It Extra Cheesy:

• Stir in a handful of mozzarella before serving

• Or melt cheese directly into the soup for a creamy twist

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❓ FAQs About Keto Lasagna Soup

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What’s a good low-carb substitute for noodles?

Zucchini ribbons, spiralized zucchini (zoodles), or palmini noodles (made from hearts of palm) are ideal. Shirataki noodles are also an option but may have a rubbery texture.

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Is tomato sauce keto-friendly?

Yes, as long as it’s unsweetened and has no added sugar. Always check the label—aim for sauces with less than 5g net carbs per serving.

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How do I thicken keto soup without flour?

Simmering the soup uncovered helps reduce and thicken it. You can also add a bit of cream cheese or grated Parmesan to increase richness without carbs.

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Can I make this in the Instant Pot or Slow Cooker?

Absolutely.

• Instant Pot: Use sauté mode for steps 1–2. Add liquids, seal, and pressure cook on high for 5 minutes. Stir in zucchini noodles and cheese after releasing pressure.

• Slow Cooker: Brown meat and onions first. Add all ingredients (except zucchini and cheese) to the cooker. Cook on low for 6–8 hours, stir in zucchini during the last 30 minutes. Add cheese just before serving.

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📊 Nutrition Info (per serving – approx.)

• Calories: 330

• Fat: 22g

• Protein: 26g

• Carbs: 6–8g net

• Fiber: 2g

• Sugar: 4g

Varies slightly depending on specific products and substitutions.

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🥗 What to Serve with Low Carb Lasagna Soup

Pair your soup with:

• A crisp green salad with olive oil and lemon

• Roasted broccoli or Brussels sprouts

• Almond flour garlic bread or keto rolls

• A drizzle of basil pesto on top for extra flavor

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🧡 Why This Soup Works (Even Without Pasta)

The magic of lasagna isn’t just in the noodles—it’s in the:

• Deep tomato and herb flavor

• Creamy, gooey cheese

• Satisfying texture from the protein and broth

This recipe delivers all of that—without the carbs. It’s comfort food reimagined for your low-carb lifestyle, with no compromises.

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📌 Save & Share This Recipe

Save this Low Carb Lasagna Soup (Keto-Friendly Comfort Food) to your Keto Dinners, Low-Carb Recipes, or Healthy Comfort Foods board so you can come back to it anytime.

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💬 Your Turn!

Have you made this keto lasagna soup?
Tried a twist like adding spinach or dairy-free cheese?

Share your version in the comments below — or tag your creation on Instagram with #KetoLasagnaSoup!