Name: Creamy Alfredo Lasagna Soup
Prep time: 10 min
Cook time: 25 min
Total time: 35 min
Ingredients: 1 lb Italian sausage; 1 medium yellow onion, chopped; 3 garlic cloves, minced; 4 cups chicken broth; 1 jar (15 oz) Alfredo sauce; 1 can (14.5 oz) diced tomatoes (with juice); 8 lasagna noodles, broken into pieces; 3 cups baby spinach; 1 1/2 cups shredded mozzarella cheese; 1/2 cup grated Parmesan cheese; 1 tsp Italian seasoning; Salt and black pepper to taste; Fresh basil (optional, for garnish)

I never imagined I could love a soup quite as much as I love lasagna—until I made this Creamy Alfredo Lasagna Soup. It brings together all the cozy, cheesy, meaty layers of traditional lasagna in a spoonable, comforting bowl. The creamy Alfredo base gives it a rich twist, while the bits of ground sausage, tender lasagna noodles, and melty mozzarella make every bite irresistible.

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What I especially enjoy is how this recipe warms you from the inside out without needing hours of prep. It’s perfect for chilly evenings, lazy weekends, or when you’re just craving something hearty but don’t want to commit to an entire lasagna. It’s become one of my favorite cold-weather staples and always gets devoured when I serve it.

Why You’ll Love This Creamy Alfredo Lasagna Soup

Fast and comforting: All the classic lasagna flavors but in a fraction of the time.
One-pot wonder: Fewer dishes and more flavor.
Creamy and cheesy: Thanks to Alfredo sauce, mozzarella, and Parmesan.
Customizable: You can swap the protein or add veggies easily.
Perfect for leftovers: Tastes even better the next day.

What Kind of Lasagna Noodles Work Best?

For this soup, I usually break up traditional lasagna noodles into bite-sized pieces before cooking them directly in the broth. They soak up all that rich, creamy flavor and add the perfect texture. If you’re in a pinch, you can use oven-ready noodles too—just remember to monitor them closely so they don’t overcook.

You could also use other pasta shapes if needed. Mafalda pasta is a great alternative since it mimics the ruffled edges of lasagna noodles. Rotini or penne will also do the trick if that’s what you have on hand, though it slightly shifts the lasagna experience.

Options for Substitutions

One of the reasons I love this recipe so much is how easy it is to adapt. Here are some great substitution ideas:

Meat: Swap out Italian sausage for ground beef, chicken, or even a plant-based alternative if you’re going meatless.
Alfredo sauce: Use a jarred version for convenience, or make your own with butter, cream, and Parmesan.
Dairy-free: Choose a plant-based Alfredo sauce and dairy-free cheese for a lactose-free version.
Vegetables: Spinach is classic, but kale or zucchini work wonderfully too.
Gluten-free: Use gluten-free lasagna noodles and check your sauce labels.

Ingredients for This Creamy Alfredo Lasagna Soup

Let’s break down what goes into this luscious soup and why each component plays a key role:

Italian sausage: Adds a savory, spiced base to the soup and brings depth to every spoonful.
Yellow onion: Provides a sweet and mellow foundation that complements the sausage beautifully.
Garlic cloves: Aromatic and punchy, garlic enhances every other flavor in the soup.
Chicken broth: Thins out the Alfredo while infusing the soup with a rich, savory background.
Alfredo sauce: The creamy heart of this dish, giving it that signature lasagna-like indulgence.
Diced tomatoes: Brings brightness and a touch of acidity to balance the richness.
Lasagna noodles: Broken into pieces, they soak up the soup and make each bite hearty and satisfying.
Baby spinach: Adds color, texture, and a bit of earthy freshness.
Mozzarella cheese: Melts into gooey strands that mimic baked lasagna’s cheesy pull.
Parmesan cheese: Offers a salty, nutty finish that ties everything together.
Italian seasoning: A blend of herbs that reinforces the classic lasagna flavor.
Black pepper & salt: Essential for seasoning and balancing flavors.
Fresh basil (optional): For garnish and a hint of herbal brightness at the end.

Step 1: Brown the Sausage

In a large Dutch oven or soup pot, heat a drizzle of olive oil over medium heat. Add the Italian sausage and break it up with a spoon as it cooks. Once it’s browned and no longer pink, transfer it to a plate using a slotted spoon, leaving the flavorful drippings behind.

Step 2: Sauté the Aromatics

In the same pot, add the chopped onion and cook until translucent—about 4 to 5 minutes. Stir in the minced garlic and cook for another minute, just until fragrant.

Step 3: Build the Broth

Return the sausage to the pot. Pour in the chicken broth, Alfredo sauce, and diced tomatoes (with their juices). Stir well to combine everything into a rich, creamy soup base.

Step 4: Add the Pasta

Bring the soup to a gentle boil, then add in the broken lasagna noodles. Let them cook uncovered for about 10 minutes, stirring occasionally so they don’t stick together.

Step 5: Stir in the Spinach and Cheeses

Once the noodles are tender, reduce the heat to low. Stir in the baby spinach until wilted. Then add the shredded mozzarella and grated Parmesan, stirring until melted and creamy.

Step 6: Season and Serve

Taste the soup and season with salt, black pepper, and Italian seasoning as needed. Ladle into bowls, top with fresh basil if desired, and serve hot with crusty bread on the side.

How Long to Cook the Creamy Alfredo Lasagna Soup

From start to finish, this soup takes about 35–40 minutes to make:

10 minutes to prep and chop ingredients
10 minutes to brown the meat and sauté aromatics
10 minutes to simmer the noodles until tender
5–10 minutes to stir in cheese, spinach, and final seasonings

It’s quick enough for a weeknight dinner, yet satisfying like a slow-simmered lasagna.

Tips for Perfect Creamy Alfredo Lasagna Soup

Break the noodles unevenly: It creates texture and mimics the rustic layers of lasagna.
Don’t overcook the pasta: Keep a close eye while simmering—it should be al dente, not mushy.
Use quality Alfredo sauce: The creaminess and flavor depend a lot on a good sauce. Homemade or a trusted brand makes a huge difference.
Grate your own cheese: Pre-shredded cheese often contains anti-caking agents that prevent it from melting smoothly.
Add spinach at the end: Stir it in after turning the heat low to keep it vibrant and tender.
Stir frequently: Especially while the noodles cook, to prevent sticking and ensure even cooking.

Watch Out for These Mistakes While Cooking

Even a comforting soup like this has a few easy pitfalls—here’s how to avoid them:

Overcooking the noodles: Lasagna noodles can go from tender to soggy fast. Cook until just al dente.
Using too much pasta: It’s tempting to throw in extra, but it will soak up too much broth and thicken the soup excessively.
Not seasoning in layers: Add salt gradually and taste as you go. Relying on one final salt dump at the end can make it feel flat or overly salty.
Dumping cheese in too fast: Add it gradually while stirring to avoid clumps and ensure a smooth, melty texture.
Skipping the broth simmer: Letting it simmer briefly before adding noodles helps meld the flavors and heat everything evenly.

What to Serve With Creamy Alfredo Lasagna Soup?

This soup is rich and satisfying, but it pairs beautifully with lighter or crunchy sides to balance the meal.

Garlic Bread

A classic! Perfect for dunking into the creamy soup and soaking up every drop.

Caesar Salad

The crisp romaine, creamy dressing, and Parmesan match the Italian vibes without adding heaviness.

Roasted Broccolini

Slightly charred and crispy-tender, broccolini adds a lovely bitter contrast to the rich soup.

Cheesy Breadsticks

If you’re all-in on comfort food, cheesy breadsticks are a fun, indulgent companion.

Cucumber Tomato Salad

A light, tangy side to refresh your palate between creamy spoonfuls.

Lemon-Dressed Arugula

Peppery greens with a bright citrus vinaigrette cut through the richness beautifully.

A Glass of White Wine

Something like a chilled Pinot Grigio pairs well with Alfredo flavors without overpowering them.

Storage Instructions

This soup stores beautifully and can even taste better the next day as the flavors continue to meld. Here’s how to keep it fresh:

Refrigerator: Store leftovers in an airtight container for up to 4 days. Keep in mind, the noodles will absorb more liquid over time, thickening the soup—still delicious, just heartier.
Freezer: If you plan to freeze it, consider leaving out the pasta and adding fresh-cooked noodles when reheating. Store in freezer-safe containers for up to 2 months.
Reheating: Warm on the stovetop over medium-low heat or in the microwave in short intervals. Add a splash of broth or milk to loosen the texture if it’s too thick.

Estimated Nutrition

These values are approximate and based on one generous serving (makes about 6 servings total):

Calories: 540
Protein: 25g
Fat: 32g
Saturated Fat: 14g
Carbohydrates: 38g
Fiber: 3g
Sugar: 5g
Sodium: 960mg
Calcium: 20% DV

Note: The actual numbers will vary depending on your Alfredo sauce, sausage, and cheese choices.

Frequently Asked Questions

What kind of Alfredo sauce should I use?

A good-quality jarred Alfredo sauce works great for convenience. If you have time, a homemade version using butter, cream, and Parmesan will add even more depth and richness.

Can I make this soup vegetarian?

Yes! Skip the sausage or use a plant-based meat alternative. You can also bulk it up with extra spinach, mushrooms, or zucchini for a hearty vegetarian version.

Can I cook the noodles separately?

Absolutely. Cooking them separately gives you more control over texture and prevents them from soaking up too much broth if you’re planning on leftovers.

How can I make this gluten-free?

Use gluten-free lasagna noodles and make sure your Alfredo sauce and broth are certified gluten-free. Many store-bought sauces are, but always check labels.

Is this soup spicy?

Not by default. If you’re using mild Italian sausage, it will be flavorful without heat. Want a kick? Add red pepper flakes or use hot Italian sausage.

Can I double the recipe?

Yes, this soup doubles easily! Just make sure your pot is large enough to handle it, and stir frequently to keep things cooking evenly.

How can I thin out leftovers?

As the soup sits, the noodles continue to absorb liquid. To loosen it up when reheating, just add a splash of chicken broth, milk, or even a bit of cream.

Can I freeze this soup?

You can, but it’s best to freeze without the noodles. Pasta tends to get mushy when frozen and reheated. Add freshly cooked noodles after thawing for best results.

Conclusion

Creamy Alfredo Lasagna Soup is comfort in a bowl—a warm hug of savory sausage, creamy cheese, tender noodles, and rich broth. Whether you’re feeding your family on a chilly night or making something satisfying without the layering work of traditional lasagna, this soup delivers all the flavor with half the effort. It’s cozy, easy, customizable, and incredibly craveable.