Lasagna soup went viral for a reason: it gives you everything you crave about lasagna, the meaty tomato sauce, the silky cheese, the tender pasta, without the layering, the boiling of giant noodles, or the 90-minute oven wait. This version keeps the rich Italian sausage and San Marzano-style tomato base, then stirs in broken lasagna noodles that cook right in the broth so they soak up all that flavor.
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The magic finish is a swirl of ricotta and mozzarella stirred through at the end, which turns a brothy soup into something creamy, cheesy, and spoon-coating. A pinch of red pepper flakes and a shower of fresh basil keep it bright, so it never tastes heavy.
It is a weeknight hero in one pot, and it reheats beautifully for lunches. Make it once and it will land in your regular rotation faster than any viral recipe you have tried.
Why You'll Love This Recipe
About the Ingredients
1 lb (450g) mild or hot Italian sausage, casings removed
Buy links rather than loose sausage for better texture and flavor; substitute ground turkey or a plant-based sausage if you prefer, adding 1 teaspoon fennel seed to mimic the sausage flavor.
1 medium yellow onion, finely diced (about 1 cup / 160g)
Yellow onion gives the sweetest base; swap in a red onion for sharper bite or 1 cup frozen chopped onion to save prep time.
3 garlic cloves, minced (about 1 tablespoon)
Fresh garlic is best, but 1 teaspoon garlic paste works in a pinch; add it last so it does not burn.
2 tablespoons tomato paste
Look for tomato paste in a tube so you can use just what you need; double it and caramelize for deeper flavor if you like.
1 can (28 oz / 800g) crushed tomatoes
San Marzano-style crushed tomatoes are sweeter and less acidic; if using diced, pulse them briefly for a smoother broth.
6 cups (1.4L) low-sodium chicken broth
Use vegetable broth for a fully vegetarian version; taste before adding extra salt since broth sodium varies a lot by brand.
8 oz (225g) lasagna noodles, broken into 1- to 2-inch pieces
Regular or no-boil lasagna sheets both work; break them in a clean kitchen towel with a rolling pin for less mess.
1 teaspoon dried oregano and 1/2 teaspoon red pepper flakes
Dried oregano is the backbone herb here; swap in 1 tablespoon chopped fresh oregano at the end if you have it.
1 cup (250g) whole-milk ricotta
Whole-milk ricotta is creamier; cottage cheese blended smooth is a lighter swap that still gives the cheesy swirl.
1 cup (100g) shredded low-moisture mozzarella
Buy a block and shred it yourself for better melt; pre-shredded cheese is coated and can turn grainy.
1/4 cup (25g) grated Parmesan, plus more for serving
Parmigiano-Reggiano has the best salty depth; Pecorino Romano is a sharper, saltier substitute, so use a little less.
1/4 cup fresh basil leaves, torn, for serving
Torn basil releases more aroma than chopped; freeze-dried basil is a weak substitute, so use parsley if fresh basil is unavailable.
Tips & Tricks
Do not overcook the noodles
They keep softening in the hot broth, so pull them 1 minute before al dente and turn off the heat.
Break the noodles small
Aim for 1- to 2-inch shards so they fit on a spoon and cook evenly; large pieces stay stiff in the center.
Season in layers
Salt the sausage, bloom the tomato paste, and taste the broth before the cheese goes in, since the Parmesan adds salt later.
Keep the cheese cool
Stir ricotta and mozzarella in off the heat so they melt into a silky swirl instead of curdling into grainy bits.
Pro Tips
Step-by-Step Instructions
1. Brown the sausage
Heat a large Dutch oven over medium-high heat (about 400F / 205C surface) and cook the sausage, breaking it up, for 6 to 8 minutes until golden brown and no pink remains, with an internal temperature of 160F (71C).
2. Soften aromatics
Reduce heat to medium (350F / 175C) and add the onion, cooking 4 to 5 minutes until translucent and soft, then stir in the garlic and cook 30 seconds until fragrant but not browned.
3. Bloom the tomato paste
Push the vegetables aside, add the tomato paste, and cook 1 to 2 minutes until it darkens to a brick red and smells sweet, which builds a deeper tomato flavor.
4. Build the broth
Pour in the crushed tomatoes and chicken broth, scraping up the browned bits, then stir in the oregano and red pepper flakes. Bring to a boil, then reduce to a gentle simmer at 200F (93C) for 10 minutes so the flavors marry.
5. Cook the noodles
Add the broken lasagna noodles and simmer 12 to 14 minutes, stirring often, until tender with a slight bite; the broth should look slightly thickened and the noodles should taste seasoned through.
6. Swirl in the cheese
Turn off the heat, then stir in the ricotta, mozzarella, and Parmesan until melted and creamy, leaving a few white streaks for looks; the soup should look glossy, not grainy.
7. Finish and serve
Taste and adjust salt and pepper, ladle into bowls, and top with torn basil and extra Parmesan. Serve immediately while the cheese is still melting.
Delicious Variations
Spicy Calabrian Version
Add 1 tablespoon Calabrian chili paste with the tomato paste and finish with hot honey for a sweet-heat kick.
Vegetarian Mushroom Lasagna Soup
Swap the sausage for 12 oz (340g) cremini mushrooms and add 1 teaspoon fennel seed for that sausage-like depth.
White Lasagna Soup
Skip the crushed tomatoes, use 8 cups broth, and stir in 1/2 cup heavy cream with the cheese for a creamy Alfredo-style spin.
How to Store Viral Lasagna Soup
Refrigerator
Store in an airtight container in the refrigerator for up to 4 days; the noodles will absorb broth, so loosen with a splash of chicken broth when reheating.
Freezer
Freeze the soup base without the cheese for up to 3 months in a freezer-safe container; thaw overnight in the refrigerator before reheating and stir in fresh ricotta and mozzarella at the end.
Reheating
Reheat gently on the stovetop over medium-low heat (about 300F / 150C) for 5 to 7 minutes, stirring in broth as needed, then add a fresh spoonful of ricotta to bring back the creaminess.
Frequently Asked Questions
Q: Can I use regular pasta instead of lasagna noodles?
Yes, any short pasta such as rotini, penne, or farfalle works and cooks in about the same time. Use 8 oz (225g) and start checking for doneness 2 minutes earlier, since shapes vary.
Q: Why did my lasagna soup turn mushy?
The noodles kept absorbing broth after cooking, which is the most common cause. Cook them just to al dente, turn off the heat before adding cheese, and store leftovers with extra broth on the side to loosen later.
Q: Can I make lasagna soup in a slow cooker?
Yes, brown the sausage and onion first, then add everything except the noodles and cheese to a slow cooker and cook on low for 4 hours. Add the noodles in the last 30 minutes on high and stir in the cheese after turning it off.
Q: Is lasagna soup gluten-free?
It can be if you use gluten-free lasagna noodles and confirm your broth and sausage are gluten-free. Add the gluten-free noodles in the last 10 to 12 minutes, since they soften faster than wheat pasta.
Q: How do I make lasagna soup vegetarian?
Swap the sausage for mushrooms or a plant-based sausage and use vegetable broth, plus 1 teaspoon fennel seed for sausage-like flavor. Check that your Parmesan uses a vegetarian rennet if that matters to you.
If you make this Viral Lasagna Soup, snap a photo of that cheesy swirl and tag me, then leave a comment to tell me how your family reacted. Save the recipe for your next cozy night in and share it with the lasagna lover in your life.
Viral Lasagna Soup
Viral Lasagna Soup delivers all the cheesy, saucy layers of lasagna in one bubbling pot, with tender noodles and a creamy ricotta finish.
🧂 Ingredients
- 1 lb (450g) mild or hot Italian sausage, casings removed
- 1 medium yellow onion, finely diced (about 1 cup / 160g)
- 3 garlic cloves, minced (about 1 tablespoon)
- 2 tablespoons tomato paste
- 1 can (28 oz / 800g) crushed tomatoes
- 6 cups (1.4L) low-sodium chicken broth
- 8 oz (225g) lasagna noodles, broken into 1- to 2-inch pieces
- 1 teaspoon dried oregano and 1/2 teaspoon red pepper flakes
- 1 cup (250g) whole-milk ricotta
- 1 cup (100g) shredded low-moisture mozzarella
- 1/4 cup (25g) grated Parmesan, plus more for serving
- 1/4 cup fresh basil leaves, torn, for serving
📋 Instructions
- 1Brown the sausage — Heat a large Dutch oven over medium-high heat (about 400F / 205C surface) and cook the sausage, breaking it up, for 6 to 8 minutes until golden brown and no pink remains, with an internal temperature of 160F (71C).
- 2Soften aromatics — Reduce heat to medium (350F / 175C) and add the onion, cooking 4 to 5 minutes until translucent and soft, then stir in the garlic and cook 30 seconds until fragrant but not browned.
- 3Bloom the tomato paste — Push the vegetables aside, add the tomato paste, and cook 1 to 2 minutes until it darkens to a brick red and smells sweet, which builds a deeper tomato flavor.
- 4Build the broth — Pour in the crushed tomatoes and chicken broth, scraping up the browned bits, then stir in the oregano and red pepper flakes. Bring to a boil, then reduce to a gentle simmer at 200F (93C) for 10 minutes so the flavors marry.
- 5Cook the noodles — Add the broken lasagna noodles and simmer 12 to 14 minutes, stirring often, until tender with a slight bite; the broth should look slightly thickened and the noodles should taste seasoned through.
- 6Swirl in the cheese — Turn off the heat, then stir in the ricotta, mozzarella, and Parmesan until melted and creamy, leaving a few white streaks for looks; the soup should look glossy, not grainy.
- 7Finish and serve — Taste and adjust salt and pepper, ladle into bowls, and top with torn basil and extra Parmesan. Serve immediately while the cheese is still melting.
