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This roasted butternut squash pasta sauce started with a little paper cup at my local grocery store. One sample, a jar in my cart five minutes later, and an obsession that didn’t end until I had my own version nailed down at home.
The brand was Dave’s Gourmet, and it was really good. Silky, a little sweet from the squash, with just enough brightness to keep it interesting. I’ve since read that they changed the recipe and people are not happy about it. Good thing this homemade version now exists!
What You’ll Need
This roasted butternut squash pasta sauce is built on simple ingredients: roasted squash and red bell pepper, sautéed aromatics, a little tomato paste, and fresh lemon. Find the complete recipe with measurements below.
- Butternut squash – The base of the sauce. Roasting concentrates its natural sweetness and gives the sauce its silky body. Rich in vitamin A and fiber.
- Red bell pepper – Roasted alongside the squash, it adds a gentle sweetness and a subtle depth to the finished sauce. Also a good source of vitamin C.
- Onion – Sautéed until lightly golden to build a savory, slightly sweet base for the sauce.
- Garlic – Pressed and cooked with the onion for bold, aromatic flavor. A staple of Mediterranean Diet cooking.
- Tomato paste – Just a small amount adds body, color, and a little richness to balance the sweetness of the squash.
- Dried thyme and oregano – A classic Mediterranean herb pairing that keeps the sauce grounded and savory.
- Olive oil – Used for roasting and sautéing. The cornerstone fat of the Mediterranean Diet.
- Lemon juice – A squeeze at the end brightens the whole sauce and keeps it from feeling heavy.
- Water – Used to blend everything to the right consistency. Add more or less depending on how thick you like your sauce.
- Salt and pepper – To taste.
How to Make Roasted Butternut Squash Pasta Sauce
Here’s how it comes together. Full details and exact timings are in the recipe card below.
- Roast the vegetables. Toss the squash cubes with olive oil and a pinch of salt. Rub the halved bell pepper with a little olive oil as well. Place everything on the same baking sheet and roast at 400°F for 30 minutes. When done, transfer the pepper to a bowl, cover, and let it steam for a few minutes before peeling off the skin.
- Sauté the aromatics. While the vegetables roast, cook the diced onion in olive oil until lightly golden. Add the pressed garlic, tomato paste, herbs, salt, and pepper, and cook for about one minute. Remove from heat.
- Blend. Add the roasted squash, peeled bell pepper, and onion mixture to a blender. Pour in the water and lemon juice and blend until completely smooth. Add a little more water if the sauce feels too thick.
- Taste and adjust. Give it a taste and adjust salt, pepper, or lemon as needed.
Cooking Timeline
🔪 10 minutes – Peel, cube, and prep the vegetables
🔥 30 minutes – Roast the squash and bell pepper at 400°F
🍳 10 minutes – Sauté the onion, garlic, and aromatics
🌀 5 minutes – Blend everything until smooth
🍽️ 2 minutes – Taste, adjust, and serve
⏱️ Total time – About 55 minutes
Ways to Serve Roasted Butternut Squash Pasta Sauce
This sauce is versatile enough to work with a lot of different pasta shapes and toppings. A few ideas:
- Ravioli – A natural pairing. Top with crumbled goat cheese or blue cheese, chopped walnuts or pecans, and a little fresh parsley.
- Pappardelle or tagliatelle – Wide, flat noodles hold the sauce well and make for a hearty bowl.
- Gnocchi – The soft texture of gnocchi works beautifully with the silky sauce.
- Whole wheat or legume-based pasta – A great option for extra fiber and protein, and very much in line with the Mediterranean Diet.
- As a spread – Try it on toasted bread or flatbread as an appetizer or light snack.
Keep toppings simple so the sauce stays the focus. A little cheese, a few toasted nuts, and some fresh herbs are all you need.
Your Questions, Answered
Absolutely. Store-bought pre-cut squash works just as well and saves a good amount of prep time. Just make sure the pieces are roughly the same size so they roast evenly.
Yes, though a high-powered blender like a Vitamix gives the smoothest result. A regular blender works fine, just blend a little longer and make sure the vegetables are fully softened before blending. An immersion blender can also work in a pinch, though the texture may be slightly less smooth.
Yes. If substituting fresh thyme and oregano, use about three times the amount called for in the recipe, since dried herbs are more concentrated than fresh.
Yes, it freezes well. Store in an airtight container for up to three months. Thaw overnight in the refrigerator and stir well before using.
Advance Prep and Storage
Make-ahead: This sauce is a great candidate for making ahead. It keeps well and actually tastes even better the next day as the flavors settle. Make a full batch and store it in a jar or airtight container in the refrigerator.
Storage: The sauce keeps in the refrigerator for up to 4 days.
Freezing: This sauce freezes beautifully. Store in an airtight container or zip-lock bag for up to 3 months. Thaw overnight in the refrigerator before using.
Reheating: Reheat gently on the stovetop over low heat, stirring occasionally. Add a splash of water or pasta cooking water if the sauce has thickened in the fridge. Avoid high heat, which can affect the texture.
More Recipes You’ll Love
- Farfalle Pasta with Mushrooms and Spinach
- Pasta with Butternut Squash and Kale
- Eggplant in Tomato Sauce
Roasted Butternut Squash Pasta Sauce
Ingredients
- 3 cups butternut squash peeled and cubed into ½-inch pieces
- 1 red bell pepper halved and seeded
- ½ onion diced
- 4 cloves garlic pressed
- 2 tbsp tomato paste
- ½ tsp dried thyme
- ½ tsp dried oregano
- 1 tsp salt
- ¼ tsp black pepper
- 1 tbsp olive oil
- 1 cup water
- 2 tbsp Lemon juice
Instructions
- Preheat the oven to 400°F. Line a baking sheet with parchment paper.
- Toss the squash cubes with olive oil and a pinch of salt. Rub the halved bell pepper with a little olive oil. Arrange everything on the prepared baking sheet in a single layer.
- Roast for 30 minutes, until the squash is tender and lightly caramelized. Remove from the oven and transfer the bell pepper to a bowl. Cover and let steam for a few minutes, then peel off the skin.
- While the vegetables roast, heat a little olive oil in an 8-inch skillet over medium heat. Add the diced onion and cook until lightly golden, about 8–10 minutes.
- Add the pressed garlic, tomato paste, herbs, salt, and pepper. Stir and cook for one minute. Remove from heat.
- Add the roasted squash, peeled bell pepper, and onion mixture to the blender. Pour in the water and lemon juice and blend until completely smooth. Add more water if the sauce is too thick.
- Taste and adjust salt, pepper, or lemon as needed. Serve immediately or store for later.
Notes
- Pre-cut butternut squash works just as well and saves prep time. Make sure pieces are roughly the same size for even roasting.
- For a thinner sauce, add water a little at a time until you reach your preferred consistency.
- This sauce works well on ravioli, pappardelle, gnocchi, or any pasta shape you like. Top with crumbled cheese and toasted nuts for a complete dish.
- The sauce freezes well for up to 3 months. Thaw overnight in the refrigerator and stir before using.
- Easily doubled for a larger batch.
So much better than anything from a jar!