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Quick Red Pepper and Olive Spaghetti Sauce

A super quick spaghetti sauce which can be whipped up from store cupboard ingredients in a few minutes while the pasta cooks.

Red Pepper and Olive Spaghetti in a white bowl

OH MY GOD, this spaghetti sauce was amazing!

I mean I knew it would taste good with the delicious Mediterranean flavours of roasted peppers, sundried tomatoes, olives and basil. I just didn't know how mouth-wateringly tasty it would be.

This has become an instant favourite and one I'll be making again very soon.

It takes a fraction of the time the pasta takes to cook and that is isn't long at all. Definitely a winning recipe.

Spaghetti Sauce Ingredients

Ingredients for Red Pepper and Olive Spaghetti Sauce


I added a small handful of fresh basil to this sauce to add flavour. Dried basil would give a totally different flavour and is better reserved for slower cooked sauces like stews. Stick to fresh basil for a dish like this.

Roasted Peppers

This was a small jar of mostly red roasted peppers from a budget supermarket. They are good quality and a great store cupboard standby.

Black Olives

I always have olives in the house as my son loves them and I admit I do too, after being an olive hater for years. It's usually green olives I buy as we both like them, but the black olives really give an extra richness and that umami flavour to this sauce and you don't need to add many either.


I added fresh garlic to this sauce. You don't need much, just a small clove, unless you love a strong garlic flavour, in which case do feel free to add a bigger clove or two small cloves.

Cashew Nuts

We all know we should include seeds and nuts in our diets, but how often do we remember to add some to our meals or snacks? Probably not enough.

My son doesn't like nuts, well actually he is unwilling to try them so this is a good way of adding some to his diet and it adds substance to the sauce too.

I used salted cashews, so didn't need to add any salt to the sauce.

Sundried Tomatoes

I used a small jar of sundried tomatoes. I reserved the oil from the jar and used it in the sauce instead of olive oil, as the tomato oil has so much flavour. I also reserved the oil from the peppers to use another day and just popped it in the fridge. No point throwing out all that yumminess.

Ingredients for Red Pepper and Olive Spaghetti Sauce - photos show how ingredients in a blender jug, then finished creamy sauce

Blender Sauce

I whizzed up all the ingredients with a good grinding of black pepper in my mini blender. I have a powerful beast of a blender in my kitchen that is used a lot, but I like my little travel blender for whizzing up quick pesto sauce, hummus and pasta sauce.

[AD] If you are interested, it's an Nutriforce Travel Blender from Froothie, whom I work with. I bloody love their blenders (excuse my French). If you use my link and the code AMB20 - 1405 I will receive a small commission and you will receive an amazing blender and £20 off.

Of course you could also use a food processor to whizz up your sauce. That would do the job nicely too, just not quite as smooth.

Red Pepper and Olive Spaghetti in a white pasta bowl

Spaghetti Making Tips

  1. To make really good pasta make sure you have a really big pot. Pasta will be more likely to stick together if the pot is too small.
  2. You don't need to add oil to the water. Just don't, your sauce will slip off instead of clinging to the pasta.
  3. Add a lot of water to the pot, you want to give the pasta plenty of room to cook.
  4. Don't add the spaghetti until the water is at a rolling boil.
  5. Stir the pasta as it is added, then at least another couple of times during cooking to keep it moving and not sticking.
  6. Try the pasta a minute before the packet says it will be ready. You want the pasta to be al dente. With a little bit of firmness, but cooked through. There is nothing worse than overcooked pasta.
  7. Before you drain the pasta, scoop out a glass or cup of the pasta water. Add this to the pasta when you are adding the sauce. It will loosen it slightly, but make it gloriously silky. This is something you will find Italians doing when cooking pasta.
  8. Pour the sauce and pasta water into the spaghetti and stir well to coat. The spaghetti should be well coated in sauce. Never serve sauce dolloped on top.
  9. Serve while hot and top with grated Parmesan (veggie or vegan).
  10. Enjoy!

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A super quick spaghetti sauce which can be whipped up from store cupboard ingredients in a few minutes while the pasta cooks. #spaghettisauce #spaghetti #redpepperpasta #redpepperrecipes #pastasauce #veganpasta #vegetarianpasta #redpeppers

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Red Pepper and olive spaghetti in white bowl, overhead shot

Red Pepper and Olive Spaghetti Sauce

This lip-smacking sauce makes enough sauce for two generously coated spaghetti mountains for four. So eight servings. 

You can store the leftover sauce in the fridge for 2-3 days and it should freeze well too.

I do hope you try it. It's bloomin' gorgeous!

I know you will love it as much as we did.

Red Pepper and Olive Spaghetti Sauce

Red pepper spaghetti
Yield: 8-10
Author: Jacqueline Meldrum
prep time: 5 Mcook time: total time: 5 M
A super quick spaghetti sauce which can be whipped up from store cupboard ingredients in a few minutes while the pasta cooks.


  • 6 tbsp oil (from the sundried tomato jar)
  • 280g jar sundried tomatoes, drained (reserve the oil)
  • 280g jar roasted red pepper, drained
  • 125g salted cashews
  • 1 small clove garlic
  • 7 pitted black olives
  • 1 small handful of fresh basil
  • 1 cup pasta water
  • a good grinding of black pepper


How to cook Red Pepper and Olive Spaghetti Sauce

  1. Make the sauce while the pasta is cooking.
  2. Whizz all the ingredients except for the pasta water in a blender or food processor until smooth.
  3. Scoop a cup of pasta water from your pasta pot. just before the pasta has finished cooking.
  4. Once the pasta is ready, drain it and pour on the spaghetti sauce (half of this recipe will generously coat enough pasta for 4 people) over the pasta along with the pasta water and stir well to coat. The pasta water will give you a silky sauce.
  5. Serve while hot, topped with grated Parmesan (vegan or vegetarian style).
  6. Enjoy!


Half of this sauce will generously coat spaghetti for four. Reserve the rest in an airtight container in the fridge for two to three days or freeze for later.
Fat (grams)
Sat. Fat (grams)
Carbs (grams)
Fiber (grams)
Net carbs
Sugar (grams)
Protein (grams)
Sodium (milligrams)
Cholesterol (grams)
spaghetti sauce, noodle sauce, vegan spaghetti sauce, red pepper spaghetti sauce, quick spaghetti sauce, easy spaghetti sauce, vegan spaghetti sauce, red pepper pasta sauce, roast pepper pasta sauce, roasted pepper spaghetti sauce, blender pasta sauce
Italian, vegan
Created using The Recipes Generator



A creamy green sauce for spaghetti that's super silky and coats the pasta beautifully. The pesto is homemade from kale and cashews. It's suitable for vegetarians and vegans.

Disclosure: I mentioned the blender I use. This recipe was not for Froothie, but I do like to recommend products and ingredients I use and love in my kitchen. I do receive a small commission if you buy using my link.


  1. this sauce sounds so awesome. I love the simple ingredients. You had me at basil!!!

    1. Yes, simple but super tasty. The basil really rounds out the flavour.

  2. This is probably one of the nicest dinners we've had in a while. We absolutely loved it! Thanks for sharing!

    1. I am so glad you enjoyed it Tonje. It's super simple, isn't it?

  3. We had spaghetti tonight but you'd be ashamed of me. I used jarred sauce. I do like the sound of this sauce though and like how easy it is. Jill

    1. There's definitely a time for jarred sauces Jill. Shall I let you into a secret. I always have an emergency jar of pasta sauce in the cupboard. Just in case. I hope you try this one too. It cooks just as quickly as a jar sauce. Just throw it all in and whizz it while the pasta cooks.

  4. I love thick rich sauce for my pasta. Love the ingredients you used, plus the cashews!!!

  5. All the flavors in this sauce sound AMAZING! How delicious!

  6. The flavors in this red pepper and olive spaghetti sauce have me excited. I love a good tomato sauce with mediterranean flavors.

    1. Oh yes me too and this one is super tasty. Do try it!

  7. This looks delicious! I'm always on the lookout for super-fast dinners for when we get home late from after-school activities. Bookmarking this one!

  8. What delicious ingredients you've included - absolutely packed full of flavour. Pasta is just brilliant for a quick and simple meal. And, thank goodness for a powerful blender :)

  9. Love how quick and easy this looks, and the clever inclusion of cashew nuts to thicken, and to add nutritional value as well. Delish!

  10. Quick pasta sauces are the best! Healthier and quicker than a processed ready meal :-)


I love reading comments, so thank you for taking the time to leave one. Unfortunately, I'm bombarded with spam, so I've turned on comment moderation. I'll publish your comments as soon as I can and respond to them. Don't panic, they will disappear when you hit publish. Jac x