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Instant Pot Lasagna Soup – Vegan Lasagna Soup with Red lentils, lasagna noodles, veggies, and basil. 1 Pot weekday meal. Vegan Nut-free Recipe. Saucepan option Can be gluten-free. Jump to Recipe

Pasta, tomatoes, herbs, red lentils, pesto and garlic bread. I mean, you cannot go wrong with all these together. This soup is satisfying and comfort food made in 1 pot and ready within minutes. It comes together quickly with short active time. Make it in the Instant Pot (pressure cooker) or a Saucepan (see recipe notes), but definitely make it. I love the soup with some extra garlicky topping like garlic bread or garlic olive oil and some fresh basil or pesto. Lentils make up the protein. If using brown lentils, use cooked lentils. Veggie crumbles will also work wonderfully.
To make this gluten-free, use glutenfree pasta or add more lentils or some quinoa and omit the pasta. Easy and Delicious Soup that is versatile and pleases everyone.
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This thick luscious meal is more a lasagna casserole than soupy soup. You can add in other ingredients such as veggie crumbles, add more water/broth for thinner soup and so on. The flavor of the soup builds up with the toppings, so definitely use them generously. You can also add in some more herbs and some pesto before pressure cooking and then fold in some mozzarella or vegan ricotta into the hot soup.
Build it up to preference make this your own fave meal!

More 1 Pot meals from the blog
- Fettuccine Alfredo with mushrooms, GF option
- Fajita Pasta with Taco Spiced Veggies and Chickpeas. GF option
- Roasted Red pepper Sauce Pasta with black pepper chickpeas
- Garlicky Korean Mac & Cheese
Instant Pot Meals
- Instant Pot Vegan Butter Chickin(soycurls). GF
- Lentil Veggie Dhansak – Lentil Veggie Stew in IP. GF
- Kohlapuri Veggies – Veggies in sesame coconut sauce GF
- Lentil Sweet Potato Soup GF
Step by step photos


You definitely dont want to skip some vegan cheese (mozzarella or ricotta) and pesto!

Tips for making a great Lasagna Soup in a Pressure Cooker
- Mix the lasagna noodles really well before closing the lid, so they don’t stick to each other under pressure.
- Double: Cooking time is the same for doubled recipe. Use slightly less than double amount of pasta, use crinkly noodles or other pasta rather than flat noodles if they tend to stick too much. (more noodles means more surface area to stick). No boil as well regular noodles work. Use more seasoning and salt, a bit more than double as more volume dilutes the flavors a bit.
- Burn errors: Mix the soup really well before closing the lid to pick up all browned onion/veggies. Any scorched veggie at the bottom tends to scorch more under pressure causing burn errors.
- Red lentils (split and skinned lentils) are quick cooking and will cook in the time of the recipe. Whole dried lentils will need a much longer cooking time and that will overcook the noodles and veggies. Use pre cooked whole lentils instead.
- The veggies, noodles and lentils will get affected if trying to make a triple or larger batch. With more volume, the pot takes longer to come to pressure and hence will cook the ingredients longer. Be mindful of the extra cooking time.
- Fold in some vegan mozzarella while the soup is still hot and top with more for a more lasagna like soup. Also do not skip the pesto.
Instant Pot Lasagna Soup - Vegan Lasagna Soup

Ingredients
- 1 tsp oil
- 1/2 onion, chopped
- 4 cloves of garlic, chopped
- 1 cup veggies - combination of peppers, , carrots, zucchini
- 1/4 cup red lentils, (uncooked) - quick cooking red lentils (split ones) also called masoor dal
- 1 cup tomato puree, (or use any thick tomato sauce such as marinara, pasta sauce or passata)
- 1 to 1.5 cup diced tomato
- 2 tsp italian seasoning, (1 tsp basil and 1/2 tsp oregano, parsley, generous dash of thyme/sage and rosemary)
- 1/4 tsp each onion powder, , garlic powder
- 1/2 to 3/4 tsp salt, (depends on if there is salt in the tomatoes or other seasoning, I use 3/4 tsp with)
- 2 cups water or veggie broth, (2.5 to 3 cups for soupier or if using whole grain noodles or with more veggies)
- 5 oz lasagna sheets, , broken into small pieces, or use pasta of choice (I use no boil as they work out the best)
- dash of black and white pepper
- pepper flakes to taste, , i use about 1/3 tsp
- 1 tbsp nutritional yeast
- 1 cup packed spinach, , optional
- vegan pesto, vegan ricotta or mozzarella, vegan butter/ garlic bread to serve, optional
- a tbsp tomato paste, lemon, fennel seeds (optional add ins)
Instructions
- Heat oil in Instant pot on saute mode. When hot, add onion, garlic and a pinch of salt. Cook for 2 mins, stirring occasionally. (See Recipe notes for Saucepan instructions )
- Add veggies and mix in. Add red lentils, tomato purée, tomato, salt, seasoning, onion powder, garlic powder and mix in. Add a tbsp of tomato paste for additional tomato flavor (optional). Add lasagna sheets and water and mix in. (make sure to use small pieces and mix them in well else they tend to stick)
- Close the lid and Pressure cook on manual hi for 3 mins **. Let the pressure release for 10 minutes, then if there is still pressure in the pot, manually release carefully and open.
- Mix in the black pepper, pepper flakes and nutritional yeast. Taste and adjust salt and flavor(italian herbs, onion/garlic powder). Add some more salt, broth, tang(lemon) if needed to balance.
- Fold in the spinach if using. Let sit for a minute. Then serve with pesto/basil and/or vegan ricotta/mozzarella, and garlic bread. You definitely need some vegan cheese for a more lasagna like flavor. Fold in some into the soup while still hot and use more for garnish.
Video
Notes
- Burn errors: Mix the soup really well before closing the lid to pick up all browned onion/veggies. Any scorched veggie at the bottom tends to scorch more under pressure causing burn errors. Add more liquid. Readers often double the liquid, veggies and sauce ingredients and don’t double the pasta.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.











Delish and so easy. Very filling, too. I used gluten free macaroni pasta as was all I had, and topped it with some homemade almond ricotta. Thanks for your consistently amazing recipes.
perfect! thanks!
Can I use quinoa instead of lentils (I don’t have any lentils)? Would there be a difference in liquid measurements? I’m looking forward to trying this. Thank you Richa.
yes it should work, some of the quinoa might get all mixed inthe sauce, use the tricolor
HELP!!!
I want to make this for dinner tonight but I bought whole red dried lentils. Is there anything I can do to them before putting them in the recipe to make them able to be cooked with the other ingredients???
Thanks.
This is what you said about the whole dried lentils. Whole dried lentils will need a much longer cooking time and that will overcook the noodles and veggies.
precook the lentils separately until al dente and then add to the soup. you can cook in saucepan (20 mins if they are skinned whole red, 30 mins of they are brown in color ie. they have skin) or pressure cooker
Add them to the soup at the beginning or end?
beginning.
So can I use uncooked red lentils? Or it has to be precooked?
the lentils are uncooked and they get cooked in the pot with the soup
Yet again…. Another insanely good recipe. Although no-cook pasta was recommended, I only had regular and it turned out perfect. For the veggies, I used 1.5 cups of a combination of red pepper, zucchini, carrots, and mushroom. It was fabulous!!! Thank you.
How is this Vegan if using pasta( lasagna noodles)…..they are usually egg based. I was vegan many years ago. Being vegetarian and eating pasta is considered OK. The dish looks good though.
most dried pasta dont have egg. Fresh pasta usually has egg. Just read ingredients and buy th brands that donthave eggs
My husband was also skeptical. But it was delicious! Added more zucchini and frozen kale worked fine instead of spinach. I used parmesan rind instead of nutritional yeast (put it in earlier so it could cook with the soup).
Made this tonight and it is absolutely delicious! Will definitely be making this again!
Recipe says 1 cup tomato sauce, directions say 1 tbsp… help!
add 1 tbsp tomato “paste” for additional flavor. its optional and personal preferernce, in case you like a more tomatoey flavor profile.
We LOVE this recipe and have made it many times times. It’s so easy and delicious! The only tweak we do is we use jumbo pasta shells instead off the lasagna noodles and it’s WOW. Thanks for this amazing recipe!