Easy Vegetarian Lasagna Soup: A Cozy, Healthy Weeknight Comfort
Craving the rich, cheesy layers of lasagna but short on time? Our easy Vegetarian Lasagna Soup delivers all the comforting flavors you love in a fraction of the time and effort. This one-pot wonder features a hearty base of crushed tomatoes, a medley of vibrant vegetables, and aromatic herbs, simmered to perfection with broken lasagna sheets. Each bowl is then generously topped with creamy ricotta, savory Parmesan, and gooey mozzarella, creating an undeniably cheesy and deeply satisfying meal that’s perfect for colder months.

If you’re a fan of comforting, wholesome meals that come together effortlessly, you’re in the right place. Soup has always held a special place in our hearts – a classic go-to for warming up on a chilly evening. And when it comes to ultimate comfort food, traditional lasagna often tops the list. Its rich flavors and satisfying layers are hard to resist. However, we all know that preparing a classic lasagna can be a time-consuming affair, often reserved for weekends or special occasions.
That’s where this ingenious Vegetarian Lasagna Soup comes in! It’s designed to give you that beloved lasagna experience with minimal fuss and a fraction of the cooking time, making it an ideal choice for busy weeknights. Best of all, it’s completely vegetarian, packed with nutrient-rich ingredients, and guaranteed to be a hit with everyone, even the pickiest eaters!
Looking for more delightful meatless lasagna options? Be sure to explore our other fan favorites like Vegan Lasagna, our incredibly popular Cottage Cheese Lasagna, or the savory Eggplant Lasagna. Each offers a unique twist on this classic dish, perfect for expanding your vegetarian repertoire.
Recipe Overview
Essential Ingredients for Your Vegetarian Lasagna Soup
Crafting this hearty soup requires a thoughtful selection of fresh, flavorful ingredients that come together to create a symphony of taste. Below is a detailed look at what you’ll need, along with insights into their role in the recipe. The precise quantities are conveniently listed in the recipe card further down this post.

- Olive oil: This forms the foundational flavor layer of our soup. A good quality olive oil is essential for sautéing your vegetables, allowing them to soften and release their aromatic compounds. If you prefer, avocado oil is an excellent alternative that offers a similar high smoke point and healthy fats.
- Carrot, celery, onion (Mirepoix): This classic trio, often referred to as a mirepoix or sofrito in different cuisines, is the backbone of so many savory dishes. These humble vegetables provide a deep, sweet, and aromatic base that infuses the entire soup with incredible flavor. Remember to dice them finely and uniformly so they cook evenly and melt seamlessly into the broth, ensuring every spoonful is perfectly balanced.
- Garlic: Fresh garlic is paramount for achieving the best, most pungent flavor in this soup. Its sharp, savory notes complement the mirepoix beautifully. While powdered garlic can be a convenient substitute in a pinch, we highly recommend fresh cloves. If opting for powdered, simply add it alongside the crushed tomatoes to prevent burning.
- Kosher salt, black pepper: Basic seasonings are crucial for enhancing all the other flavors. Seasoning throughout the cooking process, rather than just at the end, builds layers of taste.
- Italian seasoning: A blend of dried herbs like oregano, basil, thyme, and rosemary, Italian seasoning brings that quintessential Mediterranean flair that defines lasagna. It’s a convenient way to add complex herbal notes without needing multiple individual herbs.
- Smoked paprika: This spice is a game-changer, adding a subtle smoky depth and a beautiful reddish hue to the soup. It’s not just about heat; it’s about introducing a warm, earthy dimension that makes the soup incredibly inviting.
- Dry split red lentils: These tiny legumes are a vegetarian superstar! They cook relatively quickly and effortlessly absorb the flavors of the broth. More importantly, they significantly boost the protein and fiber content of the soup, making it incredibly filling and nutritious without adding any meat. They also contribute to a wonderfully thick and hearty texture.
- Crushed tomatoes: The heart of any tomato-based soup, crushed tomatoes provide a rich, robust, and slightly acidic base. They break down beautifully during simmering, creating a smooth yet textural consistency. For an extra layer of complexity and a unique smoky undertone, consider using fire-roasted crushed tomatoes.
- Vegetable broth: This liquid gold forms the main body of our soup. Opt for a low-sodium vegetable broth to give you precise control over the overall saltiness of the dish, allowing you to season to your exact preference. Homemade vegetable broth is always a fantastic, flavorful choice if you have it on hand.
- Lasagna noodles: The defining element that transforms this soup into a “lasagna” experience! Instead of cooking them separately, we break uncooked lasagna noodles into smaller, bite-sized pieces and cook them directly in the simmering soup. This method not only saves a pot but also allows the noodles to absorb all the delicious flavors of the broth. Frequent stirring during the initial cooking phase is key to prevent them from sticking together.
- Ricotta cheese: This creamy, mild, and slightly sweet cheese is essential for that authentic lasagna taste and luxurious texture. You can either stir it directly into the finished soup for a creamy infusion or dollop it on top of individual bowls for a distinct, rich layer that melts into pure bliss.
- Baby spinach: A quick-cooking, nutrient-dense green, baby spinach wilts beautifully into the hot soup, adding an earthy freshness, a pop of bright color, and a significant boost of vitamins and minerals. It’s an effortless way to sneak in extra greens.
- Parmesan and mozzarella cheese: No lasagna-inspired dish is complete without a generous helping of cheese! A sprinkle of freshly grated Parmesan adds a sharp, salty, umami kick, while shredded mozzarella provides that iconic stretchy, gooey texture when melted. These are best added right before serving, perhaps with a quick broil for that perfect golden, bubbly finish.
- Fresh basil or parsley: While optional, a vibrant garnish of freshly chopped basil or parsley elevates the soup visually and aromatically. These fresh herbs add a burst of bright, herbaceous flavor that contrasts wonderfully with the rich, savory broth, providing a perfect finish to your masterpiece.
Effortless Steps to Craft Your Vegetarian Lasagna Soup
This recipe is designed for simplicity, allowing you to achieve maximum flavor with minimal effort. Follow these straightforward steps to create a truly delicious and comforting bowl of vegetarian lasagna soup.

Step 1: Build Your Aromatic Base. Begin by heating 1 tablespoon of olive oil in a large, heavy-bottomed pot or Dutch oven over medium heat. Once shimmering, add the finely diced onion, carrots, and celery. Sauté these vegetables for about 4-5 minutes, stirring occasionally, until they begin to soften and become fragrant. Next, stir in the minced garlic and cook for another minute until it’s also fragrant, being careful not to let it burn.
Step 2: Infuse with Flavor. Season your sautéed vegetables generously with 2 teaspoons of Italian seasoning, 2 teaspoons of smoked paprika, and a good pinch of kosher salt and freshly ground black pepper. Stir well to coat the vegetables, allowing the spices to toast slightly and release their aromas for about 30 seconds. Then, incorporate the 1/2 cup of dry red split lentils, 2 x 14.5 oz cans of crushed tomatoes, and 6 cups of vegetable broth. Give everything a good stir to combine all the ingredients thoroughly.

Step 3: Simmer to Perfection. Bring the soup to a robust boil over medium-high heat. Once boiling, reduce the heat to low, cover the pot, and let it gently simmer for 15 minutes. This simmering time allows the lentils to begin softening and the flavors to meld beautifully. Remember to stir occasionally to prevent anything from sticking to the bottom of the pot.
Step 4: Cook the Lasagna Noodles. After the initial simmer, stir in the broken (uncooked) lasagna noodles. Continue to simmer the soup, uncovered, for another 12-15 minutes, or until the pasta is al dente and cooked through. It’s crucial to stir the soup frequently, especially during the first few minutes after adding the noodles, to prevent them from clumping together or sticking to the bottom of the pan. This ensures every noodle piece cooks perfectly.

Step 5: Add Creaminess and Greens. Once the pasta is tender, turn off the heat. Stir in the 1 cup of ricotta cheese and 2 cups of coarsely chopped fresh baby spinach. Continue stirring gently until the ricotta is well combined, creating pockets of creaminess throughout the soup, and the spinach has completely wilted. For a more pronounced creamy layer, you can also opt to dollop the ricotta cheese directly onto each serving bowl instead of mixing it in.
Step 6: Serve with Cheesy Indulgence. Ladle the hot, fragrant soup into individual bowls. Top each serving generously with 1/2 cup of grated Parmesan cheese and 1/2 cup of shredded mozzarella. For an extra touch of deliciousness, and to achieve that irresistible bubbly, melted cheese crust, place the cheese-topped bowls under a broiler for about 1-2 minutes, watching carefully to prevent burning. Finish with a sprinkle of freshly chopped basil or parsley for a burst of fresh flavor and vibrant color.
Creative Variations & Expert Tips for Your Lasagna Soup
This vegetarian lasagna soup is incredibly versatile! Feel free to customize it to your taste preferences and dietary needs with these helpful variations and tips:
- Deepen the Flavor with a Parmesan Rind: For an unbelievably rich, umami-packed flavor boost, add a discarded Parmesan rind to the soup as it simmers. The rind will slowly infuse the liquid with its complex, savory notes. Just remember to remove it before serving!
- Serve Immediately for Best Texture: Lasagna noodles, like most pasta, will continue to absorb liquid as the soup sits and cools. For the best al dente texture and optimal consistency, we highly recommend serving this soup immediately after it’s cooked. If you anticipate leftovers, see our storage tips below.
- Make it Gluten-Free: Easily adapt this recipe for a gluten-free diet by simply swapping traditional lasagna noodles for your favorite brand of gluten-free lasagna noodles. The cooking method remains the same.
- Prevent Sticking Noodles: Once you’ve added the broken lasagna noodles to the pot, give the soup a thorough and frequent stir, especially during the first few minutes of cooking. This crucial step prevents the noodles from sticking to each other and to the bottom of the pot, ensuring they cook evenly and separate beautifully.
- Broil for a Golden Top: To achieve that perfect, bubbly, slightly browned cheese topping reminiscent of a baked lasagna, briefly broil individual bowls of the cheese-topped soup for 1 to 2 minutes. Keep a close eye on it to avoid burning!
- Add More Vegetables: Enhance the nutritional value and texture of your soup by incorporating other diced vegetables. Consider adding chopped eggplant, sliced mushrooms, or zucchini to the pot when you’re sautéing the onions, celery, and carrots at the beginning of the recipe. This is a great way to use up any vegetables you have on hand.
- Introduce a Spicy Kick: If you enjoy a bit of heat, stir in a pinch of red pepper flakes along with the Italian seasoning and smoked paprika. You can also add a dash of your favorite hot sauce to individual bowls when serving.
- Boost Freshness with Pesto: For an extra layer of bright, herbaceous flavor, top each bowl of soup with a spoonful of fresh basil pesto just before serving. It adds a vibrant contrast to the rich tomato base.
- Creamier Texture: For an even richer and creamier soup, you can stir in a tablespoon or two of heavy cream or a dairy-free alternative like cashew cream at the very end, just before adding the spinach.

Frequently Asked Questions About Vegetarian Lasagna Soup
To ensure the best quality and prevent the noodles from becoming too soggy, it’s recommended to store cooled leftovers (without cheese toppings) in an airtight container in the fridge for up to 3 days. For longer storage, you can freeze the soup for up to 3 months. If freezing, consider removing the cooked lasagna noodles and storing them separately from the broth to maintain their texture upon reheating. This prevents them from breaking down too much in the freezer.
For stovetop reheating, transfer the desired portion of soup and lasagna noodles to a pot and gently bring it to a simmer over medium-low heat, stirring occasionally. If the soup has thickened considerably overnight, you can add a splash of water or vegetable broth to reach your preferred consistency. Alternatively, individual servings can be quickly reheated in the microwave, stirring halfway through, until thoroughly hot.
Absolutely! This soup is perfect for meal prepping. To make it ahead of time, follow the recipe exactly up until just before you add the lasagna noodles. Let the soup base cool completely. Then, transfer it to an airtight container and store it in the fridge for up to 3 days or in the freezer for up to 3 months. When you’re ready to serve, simply bring the soup base to a simmer in a pot, add the broken lasagna noodles, and continue with the recipe as usual (Steps 4-6). This method ensures the pasta is perfectly cooked and not overdone.
You have a few options for the lasagna noodles! Both flat lasagna noodles and those with ruffled edges work wonderfully. We used classic white noodles in this recipe, but wholewheat lasagna noodles are a great choice for added fiber, and gluten-free versions are also perfectly suitable for those with dietary restrictions. You can use either dried or fresh pasta, depending on your preference and what’s available. If you find yourself without lasagna noodles, don’t fret! You can easily substitute 6 ounces of your favorite dried pasta shape (like penne, rotini, or farfalle) for a similar effect.
No, that’s one of the beauties of this recipe and what makes it so incredibly easy and truly a one-pot meal! For this vegetarian lasagna soup, the dried lasagna noodles are simply broken into smaller pieces and added directly to the simmering pot of soup. They cook right in the flavorful broth, absorbing all the wonderful tastes as they soften. This eliminates an extra pot to wash and infuses the noodles with maximum flavor.
Explore More Delicious Vegetarian Soup Recipes
If you’ve fallen in love with the comforting warmth of this lasagna soup, you’ll surely enjoy our other nutritious and flavorful vegetarian soup creations. Expand your culinary horizons with these fantastic options:
- Hearty Slow Cooker Lentil Soup
- Light and Healthy Asparagus Soup
- Rich and Creamy Vegetable Soup
- Easy Stuffed Pepper Soup
- Homemade Roasted Tomato Soup
- Comforting Roasted Pumpkin Soup
- Wholesome Slow Cooker Split Pea Soup
- Flavorful Vegetable Chickpea Stew

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Vegetarian Lasagna Soup Recipe
Rena
6
servings
10
40
50
Ingredients
- 1 tablespoon olive oil
- 1 medium yellow onion, finely diced
- 2 medium carrots, finely diced
- 2 celery sticks, finely diced
- 6 cloves garlic, minced
- Kosher salt and pepper, to taste
- 2 teaspoons Italian seasoning
- 2 teaspoons smoked paprika
- 1/2 cup dry red split lentils
- 2 x 14.5 oz cans crushed tomatoes
- 6 cups vegetable broth/stock
- 8 lasagna noodles, broken into small pieces
- 1 cup ricotta cheese
- 2 cups fresh baby spinach, coarsely chopped
- 1/2 cup grated parmesan cheese
- 1/2 cup shredded mozzarella
- freshly chopped basil or parsley, optional (for garnish)
Instructions
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Heat 1 tablespoon olive oil in a large pot over medium heat. Sauté the finely diced 1 medium yellow onion, 2 medium carrots, 2 celery sticks, and 6 cloves garlic (minced) for 4-5 minutes, until vegetables soften and become fragrant.
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Season with 2 teaspoons Italian seasoning, 2 teaspoons smoked paprika, and Kosher salt and pepper to taste. Stir in the 1/2 cup dry red split lentils, 2 x 14.5 oz cans crushed tomatoes, and 6 cups vegetable broth/stock.
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Bring the soup to a boil, then reduce heat to low, cover, and simmer for 15 minutes, stirring occasionally to prevent sticking.
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Stir in the broken (uncooked) 8 lasagna noodles. Continue to simmer, uncovered, for 12-15 minutes, until the pasta is cooked al dente. Stir frequently, especially during the first few minutes after adding the noodles, to prevent them from sticking together.
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Once the pasta is tender, turn off the heat. Stir in 1 cup ricotta cheese and 2 cups fresh baby spinach (coarsely chopped) until combined and the spinach is wilted. Alternatively, serve the ricotta as a topping on each bowl.
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Serve hot, topped with 1/2 cup grated parmesan cheese, 1/2 cup shredded mozzarella, and a sprinkle of freshly chopped basil or parsley (optional). For extra melted cheese, broil topped bowls for 1-2 minutes.
Notes
Storage & Make-Ahead:
- If you want to make this ahead of time, follow the recipe up until just before you add the lasagna noodles. Let the soup cool, then store it in an airtight container in the fridge (for up to 3 days) or freezer (for up to 3 months). When ready to serve, bring the soup to a simmer in a pot, then continue with the recipe as usual.
- Store cooled leftovers in an airtight container. To best preserve noodle texture, if planning to store for more than a day, consider removing the cooked lasagna noodles and storing them separately from the broth. This will prevent them from becoming too soft. Keep in the fridge for up to 3 days or freezer for up to 3 months.
Variations & Tips:
- Want a deeper, meaty flavor in your soup? Try adding a Parmesan rind to the soup as it simmers. It’ll infuse that rich, umami taste right into the liquid. Just remember to remove it before serving!
- It’s best to serve this soup immediately after cooking it. If it sits, the lasagna noodles will continue to absorb liquid as it sits, so it’ll thicken while it cools. If reheating leftovers, you may need to add a splash of broth or water to achieve your desired consistency.
- I recommend using freshly grated Parmesan and mozzarella as pre-shredded cheeses tend to be coated in anti-caking agents, which can make them melt less smoothly and result in a grainier texture.
- Make this gluten-free by using gluten-free lasagna noodles.
- Once you’ve added the lasagna noodles to the pot, give everything a good stir for the first few minutes. This will stop the noodles from sticking to each other and the bottom of the pot.
- For that irresistible bubbly, golden-brown cheese topping, I like to broil the bowls of cheese-topped soup for a minute or so before serving to melt the cheeses perfectly. Watch it closely to prevent burning.
- For a different flavor or to boost vegetable intake, add diced eggplant, mushrooms, or zucchini to the pot when you’re sautéing the onions, celery, and carrots at the start.
- Top each bowl of soup with a spoonful of basil pesto for a fresh pop of flavor and a beautiful aroma.
- Consider pairing this hearty soup with a side of crusty garlic bread or a simple green salad to complete your meal.
For even more comforting meal ideas, you may want to check out this post on my 15+ easy & comforting soup recipes.
Nutrition Facts (per serving)
Calories:
432kcal
Carbohydrates:
58g
Protein:
22g
Fat:
13g
Saturated Fat:
7g
Polyunsaturated Fat:
1g
Monounsaturated Fat:
5g
Cholesterol:
36mg
Sodium:
836mg
Potassium:
881mg
Fiber:
11g
Sugar:
10g
Vitamin A:
5300IU
Vitamin C:
20mg
Calcium:
308mg
Iron:
4mg
Nutrition information is automatically calculated and is an approximation. Values may vary based on specific ingredients and preparation methods.
Additional Information
Main Course
American, Italian
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