This is such an easy way to make a flavour-packed roasted vegetable pasta sauce in the oven! The vegetables are roasted first (in my special garlic/herb/spice mix) then we add in our simple sauce ingredients and let them bubble together in the oven. We finish it off with a lovely dollop of crème fraîche, then toss it together with cooked pasta.

Close up of a white and blue roasting tin filled with tagliatelle in a creamy roasted vegetable sauce. There are basil leaves and cheese shavings sprinkled on top.

I don’t know about you, but I’ve often roasted vegetables, then added them into a pan with other ingredients to ‘turn it into a sauce’.
In my constant bid to reduce the amount of washing up (which seems to be one of my top 5 targets every day), I realised you could just make the sauce in the oven!

Roasting the vegetables gets them just that little bit charred (= more flavour) and then any roasting juices that are released make up part of the sauce too.
It’s only once the vegetables are roasted that we add in a few extras to ensure we get lots of luscious, flavourful sauce.

Unfortunately you do still need one extra pan to cook the pasta, but we can’t win them all 😁

📋 What do we need?

Ingredients for roasted vegetable pasta on a wooden board on a white background.

📺 Watch how to make it

Full recipe with detailed steps in the recipe card at the end of this post.

The vegetables are coated in a flavourful mixture of garlic, olive oil, balsamic vinegar, oregano, paprika and a little salt and pepper before being roasted.

Overheard of a white tray filling with chopped vegetables on a blue background.

After about 25 minutes in the oven, they should be slightly charred here-and-there, lovely and tender, and should have released some roasting juices in the pan – which will help flavour our sauce.

We add tomato puree (paste in the US) stock and a little Worcester sauce to the the vegetables, and put them back in the oven for a final 10 minutes.

Overheard of a white tray filling with chopped roasted vegetables on a blue background.

Once it comes out of the oven, I like to thicken the sauce slightly with a little bit of cornflour slurry, then we toss the sauce together with a couple of tablespoons of crème fraîche and plenty of cooked pasta.

A pile of cooked tagliatelle on top of a roasting tin of roasted vegetable sauce on a blue background. There is a set of tongs in the sauce.

👩‍🍳PRO TIP If you want a smooth sauce to get past the veg-dodgers, blitz up the sauce when it comes out of the oven, then stir in the crème fraîche and pasta.


I love to top with shavings of cheese, a few basil leaves and a sprinkling of black pepper.

Tall image of a bowl of roasted vegetable tagliatelle on a blue background with ingredients scattered around.

🍽️ What to serve it with

A white roasting tin filled with tagliatelle in a creamy roasted vegetable sauce on a blue background. The pasta is topped with a few basil leaves and some cheese shavings. There are some scattered around the roasting tin too.

As per usual, I get to eat all the mushrooms with this dinner, because no-one else in my family likes them!

Overhead of a bowl of roasted vegetable tagliatelle on a blue background. There is a further bowl of pasta at the top of the frame and a bowl of shaved cheese in shot.

🍲 More fantastic Meat-Free Pasta recipes

Stay updated with new recipes!
Subscribe to the newsletter to hear when I post a new recipe. I’m also on YouTube (new videos every week) and Instagram (behind-the-scenes stories & beautiful food photos).

Want to save this recipe to your email?
Just enter your email and get it sent straight to your inbox!
Please enable JavaScript in your browser to complete this form.
4.80 from 5 votes

Roasted Vegetable Pasta

This is such an easy easy way to make a flavour-packed roasted vegetable pasta sauce in the oven!
Prep Time: 10 minutes
Cook Time: 35 minutes
Total Time: 45 minutes
Servings: 4 people
Course: Dinner
Cuisine: Italian

Ingredients

  • 20 cherry tomatoes sliced in half
  • 1 red bell pepper chopped into chunky pieces
  • 1 yellow bell pepper chopped into chunky pieces
  • 12 button mushrooms sliced in half (I like chestnut mushrooms)
  • 1 medium courgette (zucchini) chopped into chunky pieces
  • 1 large red onion peeled and sliced into 8 wedges
  • 2 cloves garlic peeled and minced
  • 2 tbsp olive oil
  • 1 tsp balsamic vinegar
  • ½ tsp salt
  • ½ tsp black pepper
  • 1 tsp dried oregano
  • 1 tsp paprika
  • 2 tbsp tomato puree paste in the US
  • 240 ml (1 cup) hot vegetable stock
  • 1 tsp vegetarian Worcester sauce (or regular Worcestershire sauce for non-vegetarian)
  • 1 tbsp cornflour mixed with 3 tbsp cold water, to form a slurry, (cornstarch in USA)
  • 2 tbsp crème fraiche

Pasta:

  • 300 g (10.5 oz) fresh tagliatelle or swap with your favourite fresh pasta

To Serve:

  • 20 baby basil leaves
  • 4 tbsp shaved vegetarian Italian-style hard cheese (or parmesan for non- vegetarian)
  • large pinch black pepper

Instructions 

  • Preheat the oven to 180C/375F (fan).
  • Place the tomatoes in a roasting tin along with the red and yellow bell peppers, mushrooms, courgette, onion, garlic, olive oil, balsamic vinegar, salt, pepper, oregano, and paprika.
    20 cherry tomatoes, 1 red bell pepper, 1 yellow bell pepper, 12 button mushrooms, 1 medium courgette (zucchini), 1 large red onion, 2 cloves garlic, 2 tbsp olive oil, 1 tsp balsamic vinegar, 1/2 tsp salt, 1/2 tsp black pepper, 1 tsp dried oregano, 1 tsp paprika
  • Toss every together to evenly distribute the oil and seasoning.
  • Place in the oven to cook for 25 minutes, until the vegetables are tender and just starting to char a little at the edges.
  • Stir in the tomato puree, vegetable stock, and Worcester sauce. Place back in the oven for 10 minutes.
    2 tbsp tomato puree, 240 ml (1 cup) hot vegetable stock, 1 tsp vegetarian Worcester sauce
  • Meanwhile, bring a large pan of salted water to the boil and cook the tagliatelle, as per the pack instructions (usually cook for 3-4 minutes). Then drain, reserving a cup of the pasta cooking water.
    300 g (10.5 oz) fresh tagliatelle
  • Remove the vegetable mixture from the oven and stir in the cornflour slurry. This should thicken the sauce slightly.
    1 tbsp cornflour
  • Add in the cooked tagliatelle, crème fraiche and a good splash (about ¼ cup) of the reserved pasta cooking water. Toss together to mix. Add in more pasta water if you want to loosen up the sauce further.
    2 tbsp crème fraiche
  • Divide between four bowls and top with basil leaves, grated cheese, and a sprinkling of black pepper.
    4 tbsp shaved vegetarian Italian-style hard cheese, 20 baby basil leaves, large pinch black pepper

Video

Notes

Can I make it ahead?
Pasta dishes like these are usually best served straight away. However, if you have leftovers, you can cool, cover and refrigerate right away. It should keep well in the fridge for up to two days.
Reheat individual portions in the microwave for 3-4 minutes, stirring a few times whilst reheating.You may want to add a splash of water, stock and/or cream to loosen up the pasta, as the pasta will absorb more sauce during storage and reheating.
Can I freeze it?
No, I don’t recommend freezing this dish. It makes the vegetables kind of mushy upon defrosting.
Ingredient swaps
  • Swap out some of the vegetables for your favourite vegetables – asparagus, green beans, small cubes of butternut squash or sweet potato all work well (add them in at the same time as the rest of the vegetables).
  • Add frozen peas or tinned/frozen sweetcorn (add these in with the stock).
  • Stir in wilting leaves such as baby spinach or watercress at the end.
  • Swap out the tagliatelle for your favourite pasta – use fresh or dried and cook as per the pack instructions before adding in.
How to scale up and scale down this recipe
  • Double the recipe to serve 8:
    • You’ll need a LARGE roasting tray – large enough to ensure you can put the vegetables in a single layer. Double everything EXCEPT the stock. Go with 420ml (1 + 3/4 cups).
    • Add 5-10 minutes to the time when roasting the vegetables.
    • Add 10 minutes to the time when the stock goes in.
  • Halve this recipe to serve two people:
    • Halve  everything EXCEPT the stock. Use 3/4 of the amount of stock which is 180ml (3/4 cup).
    • Use the same timings as with the original recipe.
Nutritional information is approx. per serving (this recipes serves 4).

Nutrition

Serving: 423g | Calories: 386kcal | Carbohydrates: 59g | Protein: 14g | Fat: 12g | Saturated Fat: 2g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 6g | Cholesterol: 60mg | Sodium: 564mg | Potassium: 896mg | Fiber: 4g | Sugar: 8g | Vitamin A: 2001IU | Vitamin C: 126mg | Calcium: 98mg | Iron: 5mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Some of the links in this post may be affiliate links – which means if you buy the product I get a small commission (at no extra cost to you). If you do buy, then thank you! That’s what helps us to keep Kitchen Sanctuary running. The nutritional information provided is approximate and can vary depending on several factors. For more information please see our Terms & Conditions.

Welcome to Kitchen Sanctuary

Hi, I'm Nicky and I love to cook! I want to share with you my favourite, delicious family friendly recipes. I want to inspire you to create fantastic food for your family every day.

Other Recipes You Might Like:

Leave a comment

Your email address will not be published. Required fields are marked *

Rate the recipe




This site uses Akismet to reduce spam. Learn how your comment data is processed.

Comments

  1. 5 stars
    Really good recipe to follow and it’s such a tasty dish. I serve with garlic bread and it goes down a treat
    10/10

  2. 5 stars
    I just made this recipe today. It was well liked by my family as a Sunday gathering dish. I will be making this again without a doubt.

  3. 5 stars
    Tried this with our fresh vegetables and it was delicious!!! no more jar pasta sauces for our table!!!!

  4. 5 stars
    Cooked this exactly to the recipe & I can fully say it was amazing best pasta I had in a long time. Will definitely be making this on a weekly basis, well done.

  5. 4 stars
    Mmm, it looks so scrummy! Your recipes manage to make me salivate just by reading them and viewing your perfectly vibrant photos ☆☆. If I added a protein what would you suggest including the flavour?