Lentil Bolognese (richly-flavored vegetarian pasta sauce)
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If you’re after a deliciously rich lentil bolognese, look no further! This slow-cooked Italian sauce combines caramelized vegetables, lentils, and tomatoes, seasoned with a special savory ingredient. It’s an easy dinner for weeknights or slow Sundays. Ready in an hour!
This lentil bolognese is hearty, rich, and deeply satisfying, with a texture that’s surprisingly close to a classic meat sauce. The lentils bring that familiar, comforting bite, and once everything simmers together, you truly won’t miss the meat. It’s cozy, full-bodied, and exactly the kind of sauce I crave piled onto a bowl of pasta.
Because lentils are relatively mild on their own, I intentionally build flavor. I take the time to caramelize the vegetables, then add tomato paste and a spoonful of miso for extra depth and savory richness. That combination adds layers of umami and complexity, giving the sauce a long-simmered taste that sets it apart from many lentil bolognese recipes.
This is one of those dependable weeknight dinners that everyone at the table enjoys, meat-eaters included. It’s perfect for making ahead, and it freezes beautifully, which means future-you gets a seriously good pasta night with very little effort.
Another lentil recipe I think you might enjoy is my coconut lentil curry.
Store and freeze this recipe
How long does it keep in the fridge? Allow it to cool completely at room temperature, then store any leftover bolognese sauce in a covered container in your refrigerator for 3-4 days.
Can I freeze lentil bolognese? Yes, this sauce freezes beautifully. Store it in an airtight container in your freezer for up to 3 months! Thaw it in your fridge overnight before using.
Lentil Bolognese (richly-flavored vegetarian pasta sauce)
Ingredients
- 12 ounces pasta
- 2 tablespoons olive oil
- 1 medium onion (finely minced)
- 2 large carrots (finely minced)
- 1 red bell pepper (finely minced)
- 1 teaspoon EACH: sea salt and sugar
- 4 large garlic cloves (finely minced)
- 5.5 ounce can tomato paste
- 1 tablespoon miso (any color works in this recipe)
- 1 cup dried brown lentils
- 4 cups water
- 1 cup halved cherry tomatoes (or chopped tomatoes)
- Optional toppings: grated parmesan (vegan or regular), sage leaves, black pepper
Instructions
- Heat the olive oil in a large skillet over medium heat. Add the onion and cook until it starts to soften, about 5 minutes. Add the carrots, red pepper, sea salt, and sugar to the skillet and continue to cook, stirring occasionally, until everything is well caramelized, about 15 minutes. Add the garlic and tomato paste to the skillet and let it cook until the tomato paste is caramelized and fragrant, about 3 minutes.2 tablespoons olive oil, 1 medium onion, 2 large carrots, 1 red bell pepper, 1 teaspoon EACH: sea salt and sugar, 4 large garlic cloves, 5.5 ounce can tomato paste
- Add the miso, lentils, and water to the skillet and bring to a boil. Reduce the heat and let the lentils cook, uncovered, for 25-30 minutes, or until they are soft. Stir the lentils occasionally and add more water if they are looking dry. Stir in the cherry tomatoes.1 tablespoon miso, 1 cup dried brown lentils, 4 cups water, 1 cup halved cherry tomatoes
- While the lentils are cooking, bring a large pot of well-salted water to a boil. Add the pasta and cook according to the package directions. Drain and then toss with a little olive oil.12 ounces pasta
- Serve the pasta topped with the lentil bolognese and sprinkled with parmesan and a few sage leaves.Optional toppings: grated parmesan (vegan or regular), sage leaves, black pepper
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Nutrition
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Can this be done in a slow cooker?
I haven’t tried it but I suspect it would work. The only thing is that I would make sure to caramelize everything first – like in the recipe. So much of the flavor comes from this step.
The flavor was good. But I cooked it for 45 minutes and the lentils were not done. Added more water, cooked some more. Turned it off and went out. Came back, added more water, cooked another half hour and then gave up. The lentils never softened. Terribly frustrating.
It sounds like the lentils you used are old. Old lentils take forever to cook and never truly soften. Next time you’re making a lentil recipe, make sure to reach for a bag that hasn’t been sitting in the pantry (or on the store shelf) for too long. 🙂
Loved this recipe. Freezes beautifully. Made it with rice and was perfect. I found I needed much longer to soften the brown lentils and the carrots.
Hi Kristen
Would you say this recipe freezes well? And how many days in the fridge? Eager to try it and would love if I can use it for meal prep!
Thanks!
The sauce will freeze very well! I’ve meal prepped with it before and it’s great. I’m not sure about the pasta though. I usually cook mine fresh while the sauce reheats over low heat. As far as refrigerating the sauce, I’d say 4-5 days in the fridge. Maybe even longer but I always err on the side of caution with how long to keep food. 🙂
My meat-mad family LOVED this meal- hubby, miss 6, master 2 and myself gobbled this up with zest. We used quinoa rice spaghetti. The lentils were not fully cooked after 30 mins, so I think I needed to up the pan temp or cook for a bit longer. The meat was NOT missed in this meal! It will go into the family cookbook to be eaten once a fortnight!
That makes me so happy to hear!!!
So delicious I woke up the next morning thinking about whether to have the leftovers for lunch or dinner! Didn’t have brown lentils, so used green and they took a lot longer to soften, leading to the necessity of adding extra veggie broth. Other than that, made it exactly as written. Have already referred it to friends who have loved it as well. Thank you so much for the wonderful recipe!
That makes me so happy to hear! Hooray!!
I made this recipe but change a little bit the ingredients. Iinstead of 4 cups of water use 3 cups and 1 cup of red Italian wine. This wine is from Tuscany area very rich in flavor and color. That’s give the sauce a deep red color. . Also instead of penne pasta I used an artisan Italian pasta such as Capunti ( is like a macaroni product) besides that all your ingredients are perfect for this recipe
Great call on adding wine! You can never go wrong with wine and pasta!
I made this recipe this evening, and I made some extra on purpose for lunch tomorrow and I am so happy with that because it is DELICIOUS! I added some red wine for some more flavor, which I can really recommend. Will definitely make again
Great call on the red wine! And pasta is always the perfect reason to open a bottle – not that I really need a reason lol. So happy you liked the recipe!
Hey, so keen to try this recipe as it sounds amazing! Just wondering if tomato paste is the same as tomato puree, which is what we have in the UK? Usually puree is double concentrate stuff from a tube, but I haven’t heard of tomato paste. Would I be able to get around this by adding tinned tomatoes plus tomato puree or something? Thanks!
I just did a quick Google search and it looks like tomato puree is not as thick as tomato paste. I would use it but use a little extra. Then let it reduce a bit. I suspect that once it reduces it will caramelize the same as tomato paste does. I hope that helps!
Absolutely delicious. Will be king is again.
I’m so happy you like the recipe!
Hi Kristen, is there any way to make this in the instant pot ?! Thanks … can’t wait to try it 🙂
I’ve never cooked with an Instant Pot so I can’t say for sure. I would look for a lentil recipe online and use that as a base to see how long you should cook this. Make sure to caramelize all the veggies and the tomato paste well before setting the timer on the pot. It makes all the difference in this recipe. 🙂
I can’t wait to try this recipe! I am curious about cooking times with canned lentils or would this not be the best route?
Do use dry lentils if you can. If you use canned lentils you will have to reduce the liquid quite a bit or it will be much too runny. 🙂
I made this lastnight and let me tell you how DELICIOUSLY RICH this is. The only thing i didnt use was the miso. I subsitutied half a tablespoon of soy sauce. This is going to be my replacement bolognese sauce forever. Hands down. Thank you so much for this recipe !!
I made this dish yesterday and it was delicious. I didn’t have miso so I used some soy sauce instead. I also grated the carrots instead of chopping them and I used regular pasta. Next time I think I will reduce the amount of sugar a little bit – but overall a really delicous recipe!!
I’m so happy you liked it!
Love the sound of this!! Just wondering, will the bolognese keep for long in the fridge/freezer or is it best to eat straight away?
It definitely keeps! In fact, it’s even better the next day. It will last for at least 5 days in your fridge and many months in your freezer if you store it in freezer bags. 🙂
I have black lentils do you think they will work in this dish?
Absolutely they will!