Creamy Alfredo Lasagna Soup
Rich, hearty, and soul-warming, this Creamy Alfredo Lasagna Soup captures everything we love about classic lasagna—comforting noodles, savory sausage, tender vegetables, and a creamy Parmesan sauce—and transforms it into a spoonable experience.
Each bite carries layers of flavor: the earthy mushrooms, the gentle sweetness of onion, the freshness of spinach, all woven together with fragrant herbs.
Finished with a velvety Alfredo sauce that melts into the broth, this soup is indulgence in its coziest form—perfect for nights when you crave the warmth of lasagna without the layers of work.
Why People Will Love This Creamy Alfredo Lasagna Soup:
All the comfort of lasagna, without the layers – it delivers the same cozy flavors in a simpler, spoonable form.
A symphony of textures – tender noodles, creamy broth, hearty sausage, and delicate spinach come together in every bite.
Velvety Alfredo indulgence – the Parmesan-infused sauce melts into the soup, giving it richness and depth that feels both elegant and satisfying.
Balanced with freshness – earthy mushrooms and leafy spinach cut through the creaminess, creating harmony between hearty and light.
Perfect for gathering or solitude – whether shared with loved ones around the table or savored alone on a quiet evening, it nourishes body and spirit.
Key Ingredients:
Ground sausage – the savory backbone of the soup, adding richness and hearty depth that anchors every spoonful.
Onion and garlic – aromatic essentials that build a fragrant base, offering sweetness and warmth.
Mushrooms – earthy and tender, they lend complexity and umami, echoing the flavors of classic lasagna layers.
Fresh spinach – a burst of green vitality that balances the richness with freshness and color.
Lasagna noodles – broken into rustic pieces, they capture the heart of the dish, bringing nostalgia and substance.
Chicken broth – the gentle canvas that carries the flavors, light yet full of depth.
Butter, flour, milk, and Parmesan – the quartet that forms a silky Alfredo sauce, weaving creaminess and nutty sharpness into the broth.
Oregano and basil – dried herbs that whisper of tradition, grounding the dish with timeless Italian essence.
Expert Tips:
Brown the sausage with care – allow it to develop a gentle golden crust before adding vegetables; those caramelized bits enrich the broth with layered flavor.
Sweat the aromatics slowly – onions, garlic, and mushrooms release their sweetness and depth when cooked patiently, forming a foundation the soup leans on.
Cook the noodles directly in the broth – this not only saves a step but also lets the pasta absorb the savory essence of sausage and herbs, deepening every bite.
Master the Alfredo sauce – whisk steadily when adding milk to the roux, preventing lumps and ensuring a velvety, luxurious texture that blends seamlessly into the soup.
Add the sauce at the end – folding the Alfredo into the simmering broth at the final stage preserves its creaminess without risk of curdling.
Balance richness with freshness – finish with a handful of spinach or even a sprinkle of fresh basil, brightening the creamy base and keeping the flavors alive.
Creamy Alfredo Lasagna Soup
Ingredients:
½ lb ground sausage
1 small onion, diced
8 oz sliced mushrooms
2 garlic cloves, minced
4 cups fresh spinach leaves
5 cups low-sodium chicken broth
5 lasagna noodles, broken into pieces
1 tsp dried oregano
½ tsp dried basil
3 tbsp butter
3 tbsp flour
1 cup milk
1 cup grated Parmesan cheese
Instructions:
Cook the Sausage:
In a large pot, brown the ground sausage over medium heat, breaking it apart as it cooks.
Add the Vegetables:
Once the sausage is cooked, add the diced onion and sliced mushrooms to the pot.
Cook until the vegetables are soft.
Then, stir in the minced garlic and spinach.
Continue cooking for another minute or so, just until the spinach wilts.
Simmer the Broth:
Pour in the chicken broth and bring the mixture to a gentle simmer.
Let it cook for 5 minutes to allow the flavors to combine.
Add the Pasta and Seasonings:
Stir in the broken lasagna noodles, dried oregano, and basil.
Let the soup cook for 10-12 minutes, or until the noodles are tender and cooked through.
Make the Alfredo Sauce:
In a separate saucepan, melt the butter over medium heat.
Once melted, whisk in the flour and cook for 1-2 minutes until it turns golden.
Slowly pour in the milk while whisking constantly to prevent lumps.
Continue to cook until the sauce thickens.
Finish the Sauce:
Stir in the grated Parmesan cheese, mixing until the sauce is smooth and creamy.
Combine the Sauce with the Soup:
Pour the Alfredo sauce into the soup and stir well to combine.
Let it simmer together for a few more minutes until everything is hot and well-mixed.
Important Notes When Making Creamy Alfredo Lasagna Soup:
Choose quality Parmesan – freshly grated Parmesan melts more smoothly and imparts a sharper, nutty depth compared to pre-shredded varieties.
Mind the broth’s saltiness – since sausage and cheese already carry salt, using low-sodium chicken broth gives you better control over the final seasoning.
Break the noodles with intention – aim for rustic, bite-sized pieces so each spoonful carries the spirit of lasagna without being unwieldy.
Keep the heat gentle for cream sauces – once the Alfredo is added, avoid boiling; high heat can cause separation and dull the velvety texture.
Serve immediately for best texture – pasta will continue absorbing broth as it sits, so enjoy the soup fresh for perfectly tender noodles.
Reheat with care – if saving leftovers, warm gently over low heat with a splash of broth or milk to restore creaminess without overcooking the pasta.
How To Enjoy Creamy Alfredo Lasagna Soup After Cooking:
Let it breathe – once the soup is finished, allow it to rest for a couple of minutes so the flavors settle and the broth embraces its creamy body.
Serve with warmth – ladle the soup into deep bowls, letting the steam rise with the aroma of garlic, herbs, and Parmesan. Use warm bowls if possible, to keep the experience comforting from the first spoonful to the last.
Pair thoughtfully – enjoy with crusty bread or garlic knots to soak up the velvety broth, or pair with a crisp salad for a refreshing counterbalance to the richness.
Savor the layers – take slow spoonfuls, noticing how the sausage, mushrooms, spinach, noodles, and Alfredo sauce all weave together like a deconstructed lasagna in every bite.
Make it communal – share it at the table with loved ones, where the hearty nature of the soup turns an ordinary dinner into a gathering of comfort and warmth.
Elevate the moment – finish with a sprinkle of fresh herbs, extra Parmesan, or even a drizzle of olive oil for added depth and beauty.
Revisit with care – if enjoyed the next day, reheat gently with a splash of broth or milk to restore its creamy texture and savor the flavors that have deepened overnight.
Nutrition Information:
For Creamy Alfredo Lasagna Soup, per 1 serving (about 1 ½ cups, assuming 6 servings total):
Calories: 465 kcal | Total Fat: 28 g | Saturated Fat: 13 g | Monounsaturated Fat: 9 g | Polyunsaturated Fat: 2 g | Cholesterol: 95 mg | Sodium: 980 mg (using low-sodium broth; varies with sausage and added salt) | Total Carbohydrates: 28 g | Dietary Fiber: 3 g | Sugars: 6 g | Protein: 25 g
Frequently Asked Questions:
Can I make this soup ahead of time?
Yes, but for the best texture, prepare the soup without the noodles and Alfredo sauce. Add freshly cooked noodles and the sauce when reheating, so the pasta doesn’t turn mushy and the cream doesn’t separate.
What type of sausage works best?
Italian sausage (mild or spicy) brings the most flavor, but you can also use ground chicken or turkey sausage for a lighter option. Removing excess grease before adding vegetables helps keep the broth balanced.
Can I freeze Creamy Alfredo Lasagna Soup?
It’s not ideal because cream-based soups tend to separate when frozen. If you’d like to freeze it, do so before adding the Alfredo sauce and noodles, then prepare those fresh when reheating.
How can I adjust the richness of the soup?
For a lighter version, use half-and-half or even whole milk in place of heavy milk, and reduce the butter in the Alfredo sauce. Adding extra spinach or vegetables can also balance the creaminess.
What’s the best way to reheat leftovers?
Warm the soup slowly over low heat on the stovetop, stirring often. Add a splash of milk or broth to loosen the sauce and bring back its silky texture without overcooking the pasta.
How do I prevent the Alfredo sauce from curdling?
Always cook the sauce over medium to low heat and avoid boiling after adding the milk and cheese. Steady whisking and gentle heat keep the sauce silky and smooth.
Should I cook the lasagna noodles separately or in the soup?
Cooking the noodles directly in the broth allows them to soak up flavor, but they will continue to soften as the soup sits. If you plan to store leftovers, cook the noodles separately and add them to each bowl before serving.
How can I make the soup thicker if it feels too thin?
Let it simmer uncovered for a few extra minutes to reduce naturally. Or whisk a small slurry of flour/cornstarch with cold broth and stir it in, then simmer until thickened.
When should I add the spinach?
Spinach cooks very quickly, so add it just before finishing the soup. This preserves its vibrant green color and delicate texture.
What’s the key to a flavorful broth?
Brown the sausage well before adding vegetables, and allow the herbs to toast briefly in the pot. These small steps build layers of flavor that make the broth rich and aromatic.