If you have been searching for a comforting, hearty, and utterly delicious meal that feels like a warm hug on a chilly day, the Slow Cooker White Lasagna Soup Recipe is exactly what you need. This soup brings together all the creamy, savory flavors of classic white lasagna into a cozy, spoonable bowl that’s both satisfying and easy to prepare. It’s perfect for busy days when you want a homemade dinner waiting for you without the fuss of multiple pots and steps. Let me walk you through this delightful recipe that is sure to become a family favorite in no time.

Ingredients You’ll Need
Each ingredient in this recipe contributes in its own special way to build the rich flavor, creamy texture, and vibrant color that make this Slow Cooker White Lasagna Soup Recipe so crave-worthy. The list is simple, but every item is essential to deliver that authentic lasagna experience in soup form.
- White onion, diced: Adds a subtle sweetness and depth of flavor that forms the soup’s savory base.
- Garlic cloves, minced: Brings aromatic warmth and a touch of sharpness that livens up every bite.
- Italian seasoning: A blend of herbs that infuses the soup with classic Mediterranean essence.
- Salt: Enhances every ingredient and balances all the flavors perfectly.
- Black pepper: Adds gentle heat and complexity without overpowering.
- Crushed red pepper flakes (optional): For those who love a subtle kick of spice.
- Chicken stock: The flavorful liquid foundation that brings everything together with rich, comforting notes.
- Boneless skinless chicken breasts: The protein star of the dish, cooked tender and shredded right into the soup.
- Sun-dried tomatoes, chopped: Offers a burst of concentrated sweetness and tang to brighten the broth.
- Fresh spinach: Adds freshness and vibrant green color that hydrates and balances the richness.
- Cooked lasagna noodles, broken: Give the soup that classic pasta texture with less fuss.
- Cornstarch: Used to thicken the soup for that luscious lasagna sauce feel.
- Heavy cream: Creams up the soup for ultimate smoothness and indulgence.
- Shredded Parmesan cheese: For garnishing and adding an irresistible salty finish.
- Fresh parsley: A fresh herb garnish that brings color and a mild, fresh flavor.
How to Make Slow Cooker White Lasagna Soup Recipe
Step 1: Prepare the Slow Cooker
First things first, get your slow cooker ready. Add the diced white onion, minced garlic, Italian seasoning, salt, black pepper, and if you love a little heat, crushed red pepper flakes. These aromatics and seasonings lay the perfect foundation for all the flavors to meld beautifully as they cook.
Step 2: Add Liquids and Chicken
Pour in the chicken stock to create the soup base, then stir everything gently to combine. Nestle the chicken breasts right on top, and sprinkle the chopped sun-dried tomatoes over the mix. These ingredients simmer together slowly, allowing the chicken to become tender and the flavors to deepen.
Step 3: Slow Cook
Cover your slow cooker and let it work its magic. Cook on low for 6 to 8 hours for the best tenderness or on high for 3 to 4 hours if you’re short on time. By the end, your chicken will be silky and ready to shred for that perfect lasagna soup texture.
Step 4: Shred the Chicken
Carefully remove the chicken breasts from the slow cooker and shred them with two forks. This step transforms the chicken into bite-sized pieces that blend seamlessly into the soup. Return the shredded chicken to the pot so it can soak up all those amazing flavors.
Step 5: Make the Thickener
In a separate bowl, whisk together the heavy cream and cornstarch until completely smooth. Pour this creamy mixture into the slow cooker and stir well to incorporate. This step is key to turning your broth into that silky, thick white sauce you expect from a delicious white lasagna.
Step 6: Finish Cooking
Replace the lid and cook on high for another 30 minutes. This final simmer thickens the soup wonderfully and marries the creaminess with the savory chicken and vegetable flavors.
Step 7: Prepare Noodles and Add Greens
While the soup finishes cooking, boil your lasagna noodles according to the package instructions, then drain and break them up a bit. Stir fresh spinach into the slow cooker until it wilts with warmth, then gently fold in the noodles. This not only enhances the soup’s texture but also adds freshness and a pop of vibrant green.
Step 8: Serve and Enjoy
Ladle your Slow Cooker White Lasagna Soup Recipe into bowls and finish each with a generous sprinkle of shredded Parmesan cheese and a handful of fresh parsley. Serve it hot, and get ready to enjoy a bowl of pure comfort with each spoonful.
How to Serve Slow Cooker White Lasagna Soup Recipe

Garnishes
Beyond the classic Parmesan and parsley, feel free to add a drizzle of good quality olive oil or some extra crushed red pepper flakes for those who like it spicy. A grating of fresh nutmeg or a few torn basil leaves can also elevate the flavors subtly and beautifully.
Side Dishes
This soup pairs wonderfully with a crisp green salad or warm garlic bread for dunking. A side of roasted vegetables or a simple bruschetta can complement the hearty nature of the soup without overwhelming it, making your meal feel well-rounded and satisfying.
Creative Ways to Present
For a fun twist at dinner parties, serve the soup in mini bread bowls or individual ramekins topped with cheese and a quick broil for a bubbly golden finish. You could also layer this soup in a clear glass mug, showing off the beautiful noodles and vibrant spinach for a stunning lunchtime treat.
Make Ahead and Storage
Storing Leftovers
Once cooled, transfer any leftovers into airtight containers and refrigerate. The soup will keep well for about 3 to 4 days, making it an excellent option for quick reheats on busy nights when you crave homemade comfort without the prep.
Freezing
This Slow Cooker White Lasagna Soup Recipe freezes beautifully. Portion the soup into freezer-safe containers, leaving some space for expansion, and freeze for up to 3 months. Keep in mind that adding fresh spinach after thawing helps maintain its vibrant texture.
Reheating
Reheat your soup gently on the stove over medium heat, stirring occasionally. Add a splash of chicken stock or water if it thickens too much during refrigeration. Avoid boiling vigorously to preserve the creamy texture and avoid breaking down the noodles.
FAQs
Can I use pre-cooked chicken instead of raw?
Absolutely! Using pre-cooked or rotisserie chicken will cut down cooking time. Add the chicken towards the end of your slow cooking process or stir it in just before serving to prevent overcooking.
Is there a vegetarian version of this soup?
You can easily make a vegetarian version by swapping chicken stock for vegetable broth and omitting the chicken. Consider adding beans or mushrooms for extra protein and texture.
Can I use dried pasta instead of cooked noodles?
It’s best to use cooked lasagna noodles as the recipe suggests to avoid overcooked, mushy pasta. You can prepare the noodles fresh or use leftovers and add them towards the end to warm through.
What’s the best way to thicken the soup if I’m out of cornstarch?
You can substitute cornstarch with flour, arrowroot powder, or even instant mashed potato flakes for thickening. Just whisk your choice with a little cold liquid before adding it to the soup to avoid clumping.
Can I make this soup on the stovetop if I don’t have a slow cooker?
Definitely! Simmer all the ingredients on low heat for about an hour or until the chicken is cooked and tender. Then, follow the thinning and finishing steps as usual. Just keep an eye on the liquid level and stir occasionally.
Final Thoughts
Whether you’re feeding a hungry family or looking for an easy, comforting meal to cozy up with, this Slow Cooker White Lasagna Soup Recipe never disappoints. It’s a beautiful marriage of classic lasagna flavors and slow cooker convenience that makes dinner both effortless and memorable. So go ahead, gather your ingredients, and treat yourself to a bowl of blissful comfort that tastes just like homemade love in every spoonful.
Print
Slow Cooker White Lasagna Soup Recipe
- Prep Time: 15 minutes
- Cook Time: 6 hours 10 minutes
- Total Time: 6 hours 25 minutes
- Yield: 6 servings
- Category: Soup
- Method: Slow Cooking
- Cuisine: Italian-American
Description
This Slow Cooker White Lasagna Soup combines the comforting flavors of traditional lasagna in an easy-to-make, hearty soup form. Featuring tender chicken, fresh spinach, sun-dried tomatoes, and broken lasagna noodles all simmered slowly in a creamy, flavorful broth. Perfect for a cozy family meal with minimal prep and a rich, satisfying taste.
Ingredients
Soup Base
- 1 white onion, diced
- 4 cloves garlic, minced
- 2 tsp Italian seasoning
- 1 tsp salt
- 1/2 tsp black pepper
- 1/4 tsp crushed red pepper flakes (optional, for heat)
- 6 cups chicken stock
- 2–3 boneless skinless chicken breasts (about 1 pound)
- 1/2 cup sun-dried tomatoes, chopped
Add-ins
- 4 cups fresh spinach
- 8 oz cooked lasagna noodles, broken into pieces
Thickener & Cream
- 2 Tbsp cornstarch
- 1 cup heavy cream
For Serving
- Shredded Parmesan cheese
- Fresh parsley for garnish
Instructions
- Prepare the slow cooker: Combine the diced onion, minced garlic, Italian seasoning, salt, black pepper, and crushed red pepper flakes (if using) in the slow cooker.
- Add liquids and chicken: Pour in the chicken stock and stir to combine. Place the chicken breasts on top and sprinkle the chopped sun-dried tomatoes over everything.
- Cook: Cover and cook on low for 6-8 hours or on high for 3-4 hours until the chicken is fully cooked and tender.
- Shred the chicken: Remove the chicken breasts from the slow cooker, shred with two forks, then return the shredded chicken to the slow cooker.
- Make the thickener: In a separate bowl, whisk together the heavy cream and cornstarch until smooth. Pour this mixture into the slow cooker and stir well to incorporate.
- Finish cooking: Cover and cook on high for an additional 30 minutes to thicken the soup.
- Cook noodles: While finishing the soup, cook the lasagna noodles according to package instructions, drain, and set aside.
- Add spinach and noodles: Stir fresh spinach into the hot soup until wilted, then add the cooked lasagna noodles and gently stir to combine.
- Serve: Ladle the soup into bowls, top with shredded Parmesan cheese and fresh parsley. Serve hot and enjoy!
Notes
- For a spicier version, increase crushed red pepper flakes to taste.
- Use gluten-free noodles to make this recipe gluten free.
- Leftover soup can be stored in an airtight container in the refrigerator for up to 3 days.
- Reheat gently on stovetop or microwave, adding extra chicken stock or water if soup becomes too thick.
- Shredded rotisserie chicken can be used as a quick substitute for cooking chicken breasts in the slow cooker.
- For a vegetarian version, omit chicken and use vegetable stock, adding beans or extra vegetables for protein.

