Name: Vegan Lasagna Soup (One Pot Meal) Recipe
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: Italian-inspired
Ingredients: ½ tbsp oil; 1 small onion, diced; 4 garlic cloves, minced; 1 ½ tsp Italian seasoning; 1 tsp onion powder; ½ tsp paprika; 1 ¼ tsp sea salt (adjust to taste); Black pepper to taste; Red pepper flakes (optional); ½ cup (105 g) dried red lentils; 5 cups (1200 ml) low-sodium vegetable broth or water; ½ cup (120 ml) dairy-free milk or cream; ½ cup (120 ml) tomato sauce (passata); 1 tbsp tomato paste; 6 (150 g) lasagna noodles, broken into pieces (gluten-free noodles optional); ¼ cup nutritional yeast; ⅓ cup (80 g) cashew butter (or another nut butter); 1 tbsp lemon juice; Vegan ricotta or mozzarella to garnish (optional); Fresh herbs such as parsley for garnish

Jump to Recipe· 4.1 from 64 reviews

If you’re craving all the cozy comfort of classic lasagna but want something quicker, easier, and completely plant-based, then this Vegan Lasagna Soup (One Pot Meal) Recipe is going to be your new best friend in the kitchen. Imagine every warm, herb-infused bite loaded with tender noodles, deliciously creamy cashew butter, and that familiar tomato richness – all coming together in a single pot. Perfect for bustling weeknights or when you want a hearty, wholesome meal without the fuss of layers or oven time, this soup is both nourishing and soul-satisfying. Let me take you through why this recipe is truly a game-changer.

Ingredients You’ll Need

The image shows four steps of cooking in a shiny stainless steel pot on a white marbled surface. In the first step, there is a single layer of finely chopped red onion with a purple and white color sitting at the bottom of the pot. In the second step, the pot now has a layer of orange lentils mixed with the cooked onions, and a golden yellow liquid broth is being poured over them, creating a mix of orange, purple, and yellow colors. The third step shows a thick creamy light beige sauce being added on top of a dark brown soup layer in the pot, where tiny white pieces float. In the fourth step, two woman's hands are holding and breaking a pale yellow pasta shell above the bubbling orange-yellow soup, ready to drop it into the pot. The background remains a clean white marble. photo taken with an iphone --ar 4:5 --v 7

What I love most about the ingredients for this soup is how straightforward and easy to find they are. Each one plays an essential role in building that savory depth, creamy texture, or vibrant color that you want in a great vegan lasagna soup.

½ tbsp oil: The perfect base to soften your aromatics and infuse flavor.
1 small onion, diced: Adds sweetness and a gentle crunch when sautéed.
4 garlic cloves, minced: For that irresistible punch of garlicky goodness.
1 ½ tsp Italian seasoning: The classic herb blend that transports you straight to Italy.
1 tsp onion powder: Enhances the onion flavor for deeper savoriness.
½ tsp paprika: Brings a subtle smoky warmth and rich color.
1 ¼ tsp sea salt: Perfectly seasons the soup, adjustable to your taste.
Black pepper to taste: Adds a gentle heat and complexity.
½ cup (105 g) dried red lentils: Provides hearty plant protein and thickens the broth naturally.
5 cups (1200 ml) low-sodium vegetable broth or water: The flavorful liquid base that ties everything together.
½ cup (120 ml) dairy-free milk or cream: Adds creaminess without overpowering the dish.
½ cup (120 ml) tomato sauce (passata): Delivers rich tomato flavor with fresh acidity.
1 tbsp tomato paste: Intensifies the tomato depth and color.
6 (150 g) lasagna noodles, broken into pieces: The pasta that makes this truly like classic lasagna in soup form.
¼ cup nutritional yeast: Imparts that cheesy, nutty flavor without dairy.
⅓ cup (80 g) cashew butter: Adds luscious creaminess and a subtle nutty hint.
1 tbsp lemon juice: Brightens and balances all the savory flavors.
Red pepper flakes (optional): For those who crave a little spicy kick.
Vegan ricotta or mozzarella to garnish (optional): A delightful finishing touch if you want that cheesy vibe.
Fresh herbs (e.g., parsley) to garnish: Adds freshness and a pop of color to your bowl.

How to Make Vegan Lasagna Soup (One Pot Meal) Recipe

Step 1: Prep Your Ingredients

Before you get cooking, rinse the red lentils thoroughly under cold running water to remove any impurities and set them aside. Then, finely dice the onion and mince the garlic cloves so they’re ready to go. Having everything prepped makes the cooking process so much smoother.

Step 2: Sauté Aromatics

Heat the oil in a large pot over medium heat. Add your diced onions and sauté gently for about 3 to 4 minutes until they’re translucent and soft. This base brings a subtle sweetness to the soup. Next, toss in the minced garlic and cook for another minute — just long enough to let those flavors bloom without browning the garlic.

Step 3: Build the Flavor Base

Now, sprinkle in your spices: Italian seasoning, onion powder, paprika, sea salt, and black pepper. Let them toast lightly for a moment to release their aromas. Then add in the rinsed lentils, tomato sauce, tomato paste, and creamy cashew butter. Pour in the vegetable broth and whisk everything together to create a rich, velvety mix. Bring this to a boil, anticipating the comfort that awaits.

Step 4: Add the Pasta

While the pot is heating up, break your lasagna noodles into smaller, bite-sized pieces to mimic the classic feel of lasagna sheets. Once your soup reaches a boil, add in the noodles and allow them to cook for about 9 to 10 minutes or until they’re delightfully al dente. This timing ensures the noodles absorb some flavor but don’t become mushy.

Step 5: Final Touches

Turn off the heat and stir in the dairy-free milk (or cream) to give your soup a creamy finish, followed by the lemon juice for a refreshing zing. Sprinkle in the nutritional yeast last for that unmistakable cheesy taste. Taste your soup and tweak the seasoning if needed — maybe a little extra salt, pepper, or some red pepper flakes to turn up the heat.

How to Serve Vegan Lasagna Soup (One Pot Meal) Recipe

A shiny metal pot filled with thick, orange soup with short pasta pieces mixed in, some floating on top. The soup has bits of green herbs scattered throughout, and a large silver ladle lifts a spoonful showing the creamy texture and pasta clearly. The pot sits on a white marbled surface next to a blue and white checkered cloth and some slices of whole grain bread. A small bunch of fresh green herbs lies near the pot. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Top your steaming bowls with fresh herbs like parsley or basil to add herbaceous notes and a burst of color. If you want to elevate the experience even further, dollops of vegan ricotta or shreds of vegan mozzarella make the soup look and taste like you’ve just pulled it straight from an Italian trattoria.

Side Dishes

This soup stands on its own beautifully, but if you’re inviting friends or want a heartier meal, pairing it with crisp garlic bread, a simple green salad, or even roasted vegetables creates a balanced feast. These sides complement the creamy richness and keep the comfort food vibes flowing.

Creative Ways to Present

For a fun twist, serve the soup in mini bread bowls or little ramekins to delight at dinner parties. You can let guests customize their bowls with an array of vegan cheeses and fresh herb sprigs. Another idea is layering some crushed vegan crackers on top for a delightful textural contrast — it’s all about making this dish as cheerful and interactive as possible.

Make Ahead and Storage

Storing Leftovers

Once cooled, store your Vegan Lasagna Soup (One Pot Meal) Recipe in airtight containers and refrigerate for up to 4 to 5 days. Keep in mind the noodles will soak up more liquid over time, thickening the soup, so adding a splash of vegetable broth when reheating helps bring back that perfect consistency.

Freezing

This soup freezes wonderfully! Portion it out into freezer-safe containers and freeze for up to 3 months. When you’re ready to enjoy, thaw overnight in the fridge. The noodles may soften more after freezing, but the flavors remain wonderfully intact, perfect for a quick, nourishing meal.

Reheating

Reheat your soup gently on the stove over medium-low heat, stirring occasionally. Add extra vegetable broth or water to loosen the texture if needed. Avoid the microwave’s high heat to preserve the creamy texture and prevent the noodles from becoming overcooked.

FAQs

Can I use different pasta instead of lasagna noodles?

Absolutely! While broken lasagna noodles give that classic feel, you can swap in other pasta shapes like penne, rotini, or shells based on what you have on hand. Just adjust cooking times accordingly.

What if I don’t have cashew butter?

No worries. You can substitute with almond butter, sunflower seed butter, or even vegan sour cream. Each alternative brings its own creaminess and flavor, so feel free to experiment.

Is it necessary to use nutritional yeast?

While nutritional yeast adds that cheesy, umami quality, you can skip it if you’re not a fan. The soup will still be deliciously comforting thanks to the herbs, spices, and creamy cashew butter.

Can I make this soup spicier?

Definitely! Add red pepper flakes during cooking or top bowls with hot sauce to ramp up the heat. It’s an easy way to customize the spiciness to your liking.

How do I make this recipe gluten-free?

Just swap out regular lasagna noodles for gluten-free ones or any gluten-free pasta. The soup’s flavors remain rich and satisfying, no matter the pasta choice.

Final Thoughts

This Vegan Lasagna Soup (One Pot Meal) Recipe is truly a cozy embrace in a bowl, combining the best of comforting, familiar flavors with the ease of a fuss-free process. Whether you’re a seasoned vegan, new to plant-based cooking, or simply craving something warm and delicious, this soup delivers in every way. I can’t encourage you enough to give this recipe a go and make your next meal one to remember. Happy cooking!