Vegetarian Lasagna Soup Bowl

This comforting vegetarian lasagna soup brings together tender pasta, flavorful vegetables, and three cheeses in a single pot for an easy, satisfying meal. Red lentils and fire-roasted tomatoes stew in a fragrant Italian herb base, mingling with broken lasagna noodles that soak up all the savory broth. Wilted baby spinach adds nutritious greens, while a finish of mozzarella, Parmesan, and ricotta delivers creamy, melty richness. Made on the stovetop in about thirty minutes, this winter warmer is ideal for busy evenings when you crave cozy, homemade flavors with minimal fuss. Garnish with parsley and enjoy a nourishing bowl any night of the week.

A woman with a smile on her face.
Created By Melanie Carter
Updated on Fri, 31 Oct 2025 12:23:14 GMT
A bowl of pasta with cheese and sauce. Pin
A bowl of pasta with cheese and sauce. | mellierecipes.com

This Vegetarian Lasagna Soup brings together everything you love about classic lasagna in a comforting soup that hits the spot on chilly evenings. It is rich and hearty without being heavy, and cleanup is so simple since it all happens in one pot. You get all the layered flavors of lasagna with only a fraction of the effort.

The first time I made this soup was a busy weeknight when I was craving something creamy and satisfying but did not want to fuss with traditional lasagna. Ever since, it has become a trusted favorite especially when guests come over for a casual meal.

Ingredients

  • Olive oil: gives the vegetables and aromatics a luscious flavor and smooth base so use a good quality olive oil if you have it
  • Yellow onion: chopped fine delivers natural sweetness and grounds the soup
  • Garlic: sliced thin and used generously for plenty of classic Italian aroma
  • Italian seasoning: brings an effortless blend of herbs to mimic the flavors of lasagna
  • Tomato paste: makes the broth rich with depth and body look for deep red paste in a tube for easiest use
  • Basil pesto: provides herby, cheesey richness putting a shortcut spin on homemade flavor
  • Split red lentils: unassuming but key for creamy body and a hidden boost of plant protein select ones that look whole without shriveled bits
  • Fire roasted crushed tomatoes: give a gentle smokiness and robust tomato flavor I always use fire roasted if possible
  • Vegetable broth: thins out the soup base so the noodles cook evenly pick a low sodium option to control saltiness
  • Granulated sugar: optional but balances any acidity in the tomatoes
  • Uncooked lasagna noodles: the star ingredient broken up for those imperfect, rustic pieces that mimic true lasagna
  • Fresh baby spinach: for added nutrients and color use handfuls of greens that still look perky
  • Parmesan cheese: salty and sharp so go for a wedge you can grate yourself
  • Shredded mozzarella cheese: melts perfectly to lend that signature stretchy cheesy top
  • Whole milk ricotta cheese: for a dollop of creamy richness choose a thick and creamy ricotta for best results
  • Fresh chopped parsley: brightens and freshens each bowl
  • Kosher salt and fresh cracked pepper: round out the flavors and let you season to taste

Step-by-Step Instructions

Heat the Oil and Aromatics:
Warm the olive oil in a large pot over medium-high heat until it shimmers add onion with a pinch of salt and pepper stir frequently for three minutes to coax out its sweetness and soften
Build the Flavor Base:
Lower the heat to medium and scatter in the garlic Italian seasoning plus more salt and pepper sauté for one minute while everything turns fragrant but not browned
Toast the Tomato Paste:
Spoon in the tomato paste stir well and let it cook for two minutes until it changes to a deep brick red this caramelizes the natural sugars for a fuller flavor
Deglaze the Pot:
Splash in a little vegetable broth to loosen up any bits stuck to the bottom scrape gently with a spoon to pick up all those flavorful bits
Simmer the Soup:
Add the pesto lentils fire roasted tomatoes remaining broth and sugar if using along with a couple generous pinches of salt and pepper raise the heat to medium-high and bring gently to a simmer stirring here and there so the lentils do not stick
Cook the Pasta:
Drop in the broken lasagna noodles reduce the heat to low or medium-low and let simmer for twelve to fifteen minutes until the pasta is al dente stirring every few minutes
Finish the Soup:
Remove the pot from the heat stir in the spinach so it wilts to a tender bite adjust the seasoning with more salt and pepper if needed
Add the Cheeses and Garnishes:
Ladle the soup into bowls and top each serving with a sprinkle of Parmesan and mozzarella cheese then add a generous scoop of ricotta cover with a lid for a few minutes to melt the cheese and finish with chopped parsley
A bowl of pasta with cheese and meat. Pin
A bowl of pasta with cheese and meat. | mellierecipes.com

I adore the silkiness ricotta cheese brings to this soup each spoonful is creamy without feeling heavy and always reminds me of helping my mom dollop cheese on Sunday lasagna Growing up lasagna was a treat but this soup now brings that memory to our weeknights

Storage Tips

Store all leftovers in an airtight container in the fridge for up to four days The noodles will absorb more liquid as it sits so simply add a splash of broth or water when reheating for best texture I like to reheat gently on the stovetop to keep the cheeses smooth

Ingredient Substitutions

If you do not have fire roasted crushed tomatoes plain crushed or even jarred marinara sauce works well Just know that crushed tomatoes add extra texture and a hint of smokiness Kale Swiss chard or even arugula can take the place of spinach for sturdy greens And you can swap in any hearty pasta shape like penne or rotini instead of lasagna noodles

Serving Suggestions

Serve bowls piping hot with extra ricotta and a side of garlic bread or a crisp green salad For added warmth sprinkle a bit of red pepper flakes over the top I love to ladle this soup into big mugs when we have game nights so everyone can eat comfortably as they mingle

A bowl of pasta with a white sauce on top. Pin
A bowl of pasta with a white sauce on top. | mellierecipes.com

Cultural and Historical Context

Lasagna has its roots in Italian home cooking where layers of noodles sauce and cheese come together in a labor of love This soup takes all that tradition and makes it approachable for busy home cooks in the US Without sacrificing flavor you get that same cozy family meal feeling in far less time

Recipe FAQs

→ Can I substitute a different type of pasta?

Absolutely! While broken lasagna noodles give a classic touch, feel free to use bowties, penne, rotini, or any similar shape for this dish.

→ What can I use if I don't have crushed tomatoes?

Tomato puree, canned tomato sauce, or jarred spaghetti sauce work well for a smoother base, or crush whole peeled tomatoes for a chunkier texture.

→ Is it possible to swap out the spinach for another green?

Definitely. Kale, Swiss chard, mustard greens, collards, or even arugula make great substitutes; use whatever hearty greens you have on hand.

→ How can I make the soup creamier?

Stir in extra ricotta or a splash of cream at the end of cooking for a richer, creamier consistency.

→ Can this soup be prepared ahead of time?

Yes, the soup keeps well in the fridge for a few days. Cook the noodles just to al dente and reheat gently, adding a splash of broth if needed.

→ Is there a vegan version of this soup?

Yes, simply replace the cheese and ricotta with plant-based alternatives, and ensure your pesto is dairy-free.

Vegetarian Lasagna Soup Bowl

A hearty one-pot soup with layers of noodles, cheese, and vegetables in a rich tomato broth.

Prep Time
5 minutes
Cooking Duration
25 minutes
Overall Cooking Time
30 minutes
Created By: Melanie Carter

Recipe Category: ~

Skill Level: Beginner-Friendly

Cuisine Style: Italian-American

Result Amount: 8 Portions

Diet Preferences: Suitable for Vegetarians

What You’ll Need to Make This

→ Soup Base

01 15 ml olive oil
02 1 medium yellow onion, diced
03 6 garlic cloves, thinly sliced
04 1.5 tablespoons Italian seasoning
05 2 tablespoons tomato paste
06 120 ml basil pesto
07 100 g uncooked split red lentils
08 1.59 kg canned fire roasted crushed tomatoes
09 960 ml vegetable broth
10 1-2 teaspoons granulated sugar, optional
11 8 uncooked lasagna noodles, broken into bite-sized pieces

→ Final Additions and Garnishes

12 2-3 cups chopped fresh baby spinach, optional
13 50 g grated Parmesan cheese
14 50 g shredded mozzarella cheese
15 240 g whole milk ricotta cheese
16 Fresh chopped parsley for garnish
17 Kosher salt, to taste
18 Fresh cracked black pepper, to taste

How to Prepare

Step 01

Heat olive oil in a large pot over medium-high heat. Add diced onion with a pinch of salt and pepper, sautéing for 3 minutes while stirring frequently.

Step 02

Reduce heat to medium. Add sliced garlic, Italian seasoning, and additional salt and pepper. Sauté for 1 minute, allowing the aromatics to bloom.

Step 03

Add tomato paste, stirring to combine, and cook for 2 minutes until the paste darkens to a brick red color.

Step 04

Deglaze pot with a generous splash of vegetable broth. Add basil pesto, split red lentils, crushed tomatoes, remaining vegetable broth, and granulated sugar if using, along with additional salt and pepper.

Step 05

Increase heat to medium-high and bring the soup to a gentle simmer, stirring occasionally to prevent lentils from sticking.

Step 06

Stir in broken lasagna noodles. Reduce heat to low-medium and simmer gently for 12–15 minutes, stirring intermittently, until pasta is al dente and lentils are tender.

Step 07

Remove pot from heat and stir in chopped spinach until wilted. Adjust salt and pepper to taste.

Step 08

Ladle soup into bowls. Top each portion with Parmesan, mozzarella, and a dollop of ricotta. Cover the pot for a few minutes to allow the cheeses to melt. Garnish with chopped parsley before serving.

Extra Tips

  1. Substitute crushed tomatoes with tomato puree, tomato sauce, or whole peeled tomatoes for varied texture. Various pasta shapes such as bowties, penne, or rotini can replace lasagna noodles. Sturdy greens like kale, Swiss chard, or collard greens offer flexibility instead of spinach; use slightly wilted greens if needed.

Tools Required

  • Large heavy-bottomed pot
  • Wooden spoon or spatula
  • Ladle

Allergen Info

Review ingredients carefully for allergens. Reach out to your healthcare provider if you’ve got specific concerns.
  • Contains dairy (Parmesan, mozzarella, ricotta cheese)
  • May contain gluten (lasagna noodles)
  • Contains nuts if using nut-based pesto

Nutritional Information (Per Serving)

Remember, this info is purely for reference and isn’t meant to replace dietary guidance.
  • Caloric Value: 285
  • Fat Content: 12.1 grams
  • Carbohydrate Content: 31.2 grams
  • Protein Content: 12.6 grams