This recipe for Vegan Roasted Red Pepper Pasta Sauce is made with aromatic, sweet oven-roasted red peppers, roasted garlic, cashews, and shallots. It’s bursting with flavor because of the addition of herby fresh basil leaves and a splash of lemon juice.
Adding vegetable broth makes the sauce the perfect creamy texture to smother on top of your favorite pasta. Make this sauce for a wholesome and vibrant pasta dinner.
Roasting the red peppers for your vegan red pepper pasta is very simple and easy:
- First, wash and slice the red bell peppers lengthwise. Remove all the seeds and membranes inside. Discard the stem as well.
- Place the peppers cut-side down on a baking sheet and brush with olive oil.
- Bake at 425°F (220°C) for about 30-40 minutes. You’ll see the skins of the peppers start to char a little bit, this is when you know they are done.
- After the peppers are roasted, transfer them to a heat-safe bowl and cover with a towel. Let them steam for about 10-15 minutes, or until they are cool enough to handle.
- Once steamed, it should be easy to peel the skins off the peppers. Now, they are ready to blend into a creamy, dreamy, sauce with the addition of a few other ingredients.

Find the recipe for this Vegan Roasted Red Pepper Pasta Sauce below. Leave a comment if you make this or tag us on instagram @pastabased!
More delicious pasta recipes:
- Vegan Spaghetti Carbonara: a CLASSIC Italian dish that is creamy, cheesy and sure to impress anyone!
- Butternut Squash Ravioli: One of our all-time favorites! The filling is to die for and it pairs PERFECTLY with a sage brown butter garlic sauce.
- Vegan Meat Sauce: A recipe that nobody will know is vegan! The cauliflower crumble disguises itself perfectly in this meat sauce.

Creamy vegan pasta sauce made from roasted red bell peppers. A great alternative to tomato-based sauces. Easy and simple recipe perfect for any kind of pasta.
- 4 red bell peppers
- 2 tablespoons olive oil
- 5 cloves garlic peeled
- 1 large shallot chopped
- 1/4 cup cashews
- basil leaves handful
- 1 pound pasta
- 1/2 cup vegetable broth
- 2 tablespoons lemon juice
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Preheat oven to 425°F (220°C). Slice red bell peppers in half lengthwise and remove stems, seeds, and membranes. Place cut side down on a baking sheet and brush with olive oil. Bake in preheated oven for 25 minutes. Add whole garlic cloves, chopped shallot, and cashews to the baking sheet. Bake for an additional 10 minutes.
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Once the red bell peppers are finished roasting, remove the baking sheet from the oven and transfer the peppers into a heat-safe bowl. Cover the bowl with a clean towel and set aside until the peppers are cool enough to handle. Once cool, peel off the skins and discard them.
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In a blender, add roasted red bell peppers, garlic cloves, shallot, cashews, basil leaves, vegetable broth, and lemon juice. Blend until well combined and creamy.
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Meanwhile, bring a large pot of salted water to a boil. Add preferred pasta and cook based on package instructions. Drain and set aside.
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Heat blended red pepper sauce in a saucepan over medium heat. Combine with cooked pasta. Serve warm. Top with vegan parmesan and red pepper flakes. To store, cool and refrigerate for up to a week.
Evan
Unfortunately I’m intolerant to cashews. Is there another type of nut I could use?
Thanks
pasta-based
Hi Evan, you may want to try just omitting the cashews completely.
Laura
Delicious recipe! Thank you!
Dianna
Loved this recipe! Used jarred bell peppers and omitted the oil and shallots as well since I didn’t have any. It came together in a snap and is excellent!! Thank you for posting this recipe!!!
Ans
Hi
I’d like you know how much is one cup? Thankyou!
Susan
What’s your favorite vegetable broth brand?
Ashley
Delicious recipe! I used jarred roasted peppers instead. I like my pasta saucy and looking it over I didn’t think I’d have as much as I’d like so I doubled the recipe and it was just right. I sautéed some spinach and blended it in there too for some hidden veggies, then topped with sautéed mushrooms. Thanks!
Paula
I’ve made this 3 x already. So creamy and delish!
pasta-based
Thank you so much for letting us know! Glad you love it 🙂
Karen
I cooked the sauce with minimal changes:
Substituted cashews with macadamia nuts and added more garlic. It was delicious and I will make this sauce again! Thank you for sharing it!!!
Linda
I am not sure about the cashews. Do I just buy them in a can without salt one them or raw cashews? Thank you, Linda
pasta-based
The cashews are raw (unsalted).