There’s something so magical about comfort food that brings everyone to the table with a smile. And when two comfort classics collide—like rich, cheesy Alfredo pasta and hearty lasagna—you get something downright irresistible. That’s exactly what this Decadent Creamy Alfredo Lasagna Soup delivers. Imagine all the bold, savory, creamy flavors of your favorite baked lasagna… in a cozy bowl you can eat with a spoon. Yes, it’s as dreamy as it sounds.

Now, I know lasagna usually means a sink full of dishes, a long bake time, and layer upon layer of effort. But this soup version takes all the work out of it without sacrificing the flavor. It’s hearty, it’s creamy, and it’s filled with everything you love—Italian sausage, tender noodles, spinach, melty mozzarella, and that rich Alfredo base. All ready in about 40 minutes!

This recipe has quickly become one of my go-to meals when I want something warm, filling, and satisfying, especially during cooler evenings. The best part? It’s just as great for weeknight dinners as it is for impressing guests on the weekend. My family raved about it the first time I served it, and now it’s one of those dishes we look forward to over and over.

Let’s get into the good stuff so you can start making your own pot of comfort.

Ingredients You’ll Need

Before we get to cooking, let’s take a quick peek at the lineup of ingredients. Most of these are probably already hanging out in your pantry or fridge.

1 tablespoon olive oil
1 pound Italian sausage, casing removed
1 small onion, diced
3 garlic cloves, minced
1 teaspoon Italian seasoning
6 lasagna noodles, broken into pieces
4 cups chicken broth
2 cups heavy cream
1 cup grated Parmesan cheese
1 ½ cups shredded mozzarella cheese
2 cups fresh spinach
Salt and black pepper to taste
Chopped parsley for garnish

This combo gives you the meaty, cheesy, creamy base that makes this soup so rich and satisfying. If you’re already drooling, just wait till it starts simmering on the stove—your whole kitchen will smell amazing.

STEPS: Start Building the Flavor

Let’s kick things off by building that rich, savory base of the soup.

Step 1: Brown the Sausage

Grab a large pot or Dutch oven and heat 1 tablespoon of olive oil over medium heat. Add the Italian sausage and cook it, breaking it apart with a wooden spoon as you go. You want the sausage to be fully browned and cooked through, which takes about 6 to 7 minutes.

Step 2: Add the Onion, Garlic & Seasoning

Once your sausage is looking golden and delicious, toss in the diced onion. Let it cook for about 4 to 5 minutes until it’s nice and soft. Then, stir in your minced garlic and that teaspoon of Italian seasoning. Let it all cook for another minute until fragrant—this step really wakes up the flavor.

By now, your kitchen probably smells like an Italian restaurant in the best way.

Step 3: Add the Noodles & Broth

Here comes the fun part: toss in your broken lasagna noodles. They don’t need to be perfect—just break them up into medium pieces. Pour in the 4 cups of chicken broth, stir everything together, and bring it to a boil.

Once it starts bubbling, reduce the heat and let it simmer for about 10 to 12 minutes. You’re aiming for tender noodles, but not mushy. Stir occasionally to keep the pasta from sticking to the bottom of the pot.

Alright, we’ve already got the flavor-packed foundation simmering away. The Italian sausage is juicy and browned, the noodles are tender, and the kitchen smells like something out of a cozy trattoria. Now it’s time to bring it all together with the real stars of the show—the creamy Alfredo base and loads of melty cheese.

This part is where everything transforms from “a good soup” to “can’t stop eating this straight from the pot” levels of comfort. The creamy broth, the Parmesan, the mozzarella—plus that fresh spinach right at the end—create a texture and flavor combo that’ll have everyone asking for seconds.

STEPS: Creamy Finish & Cheesy Goodness

Step 4: Stir in the Cream and Parmesan

Once your noodles are cooked through and the soup is bubbling gently, it’s time to lower the heat. Add in your 2 cups of heavy cream and the 1 cup of grated Parmesan cheese, stirring slowly until everything melts into a smooth, velvety broth.

This is the step where the soup takes on that Alfredo-style richness. The Parmesan adds a sharp, nutty depth, while the cream brings that decadent, comforting texture.

If the soup looks a bit too thick right now—don’t panic! It’ll continue to loosen slightly as the other ingredients are stirred in, and you can always add a splash of extra broth later if needed.

Step 5: Add the Mozzarella

Next, add the 1½ cups of shredded mozzarella cheese and stir until it’s fully melted. This gives the soup that extra creamy stretch and makes every spoonful feel like a bite of lasagna straight out of the oven.

Take your time stirring here—this is where everything starts to meld together into that perfect creamy consistency.

Step 6: Toss in the Spinach

Finally, add in the 2 cups of fresh spinach. You don’t want to overcook it—just stir for about 2 to 3 minutes until it wilts gently into the soup. This not only adds a pop of color but also brings a little freshness to balance out the richness.

At this point, season with salt and black pepper to taste. I recommend starting small and tasting as you go. The sausage and cheeses already bring a good amount of saltiness, so you likely won’t need too much.

Tips for a Soup That’s Always a Hit

This recipe is wonderfully forgiving and flexible. Here are a few of my favorite tweaks and tricks to make it your own or adapt it to what you have on hand:

Swap the Meat: Not a fan of Italian sausage? Ground beef, ground chicken, or even turkey all work great. Just be sure to season them well so you don’t lose flavor.
Make It Meatless: Want to skip the meat altogether? Substitute with sautéed mushrooms or a can of white beans for a hearty, vegetarian option.
Use Oven-Ready Lasagna Noodles: If you don’t have traditional lasagna noodles, you can use oven-ready ones—just break them into small pieces. They’ll cook a bit faster, so keep an eye on them.
Try Ricotta On Top: For that classic lasagna vibe, add a dollop of ricotta cheese to each bowl just before serving. It adds creaminess and makes it feel even more like lasagna in a bowl.
Reheating Tip: This soup will thicken as it sits (especially after being in the fridge), so when reheating, just add a little extra broth or cream to bring it back to the perfect consistency.

How to Serve It

This soup is rich and hearty, so it can totally stand on its own as a full meal. But if you want to make it a complete dinner, here are a few easy ideas for serving:

With Garlic Bread: Because dunking that crusty, buttery bread into the creamy broth? Absolute heaven.
Simple Side Salad: A fresh green salad with a lemony vinaigrette balances out the richness beautifully.
Top with Fresh Herbs: A sprinkle of chopped parsley (or even fresh basil) gives the final bowl a pop of brightness.

By now, you’ve probably realized just how dreamy this Decadent Creamy Alfredo Lasagna Soup really is—rich, cozy, and packed with flavor. Before we wrap things up, let’s go over some of the most common questions I get about this recipe. Whether it’s about storing leftovers, making substitutions, or adjusting for dietary needs, I’ve got you covered.

FAQ: Creamy Alfredo Lasagna Soup

1. Can I freeze this soup?

Yes, you can freeze it—just keep in mind that creamy soups with pasta can change texture a bit after freezing. To freeze, let the soup cool completely and store it in airtight containers. When reheating, warm slowly over low heat and add a little extra broth or cream to bring back the smooth texture.

2. Can I make it ahead of time?

Absolutely. This soup is great for meal prep and tastes even better the next day as the flavors deepen. Store it in the fridge in a sealed container for up to 3–4 days. Just remember to stir in some extra liquid when reheating, since the noodles will absorb some of the broth as it sits.

3. What kind of sausage should I use?

I usually go with mild or sweet Italian sausage for a classic flavor, but hot Italian sausage works great too if you like a little kick. If you’re using ground chicken or turkey instead, consider adding extra Italian seasoning to boost the flavor.

4. Can I use store-bought Alfredo sauce instead of cream and cheese?

You can, though it will slightly change the taste and texture. If you’re in a pinch, adding about 2 cups of quality jarred Alfredo sauce in place of the heavy cream and Parmesan can work. Just be sure to adjust the salt since some sauces are already heavily seasoned.

5. How do I make this soup gluten-free?

It’s easy to adapt this recipe to be gluten-free—just swap out the regular lasagna noodles for your favorite gluten-free variety. Also, double-check that your chicken broth and sausage are certified gluten-free.

6. What other vegetables can I add?

Spinach works beautifully here, but you can also stir in chopped kale, zucchini, mushrooms, or even roasted red peppers for extra flavor and nutrition. Just add them toward the end so they don’t overcook.

7. Can I make this soup lighter?

To lighten things up, you can swap the heavy cream for half-and-half or whole milk, though the soup won’t be quite as rich. You could also reduce the cheese slightly or use part-skim mozzarella to cut down on calories.

Final Thoughts: Warm, Cheesy Comfort in a Bowl

There’s just something so comforting about lasagna—but let’s be real, it’s not always practical for a busy night. That’s what makes this Creamy Alfredo Lasagna Soup such a keeper. It gives you all the things you love—cheesy goodness, hearty pasta, and that cozy, home-cooked flavor—with none of the layering, baking, or waiting.

Plus, it’s one of those recipes that feels special but is secretly easy. Whether you’re feeding a crowd, meal prepping for the week, or just craving something rich and satisfying, this soup checks all the boxes.

So next time you’re craving a warm bowl of comfort, skip the casserole dish and grab your soup pot instead. And don’t forget to top it off with fresh parsley (or even a spoonful of ricotta if you’re feeling fancy).

Decadent Creamy Alfredo Lasagna Soup