Deep, caramelized flavors from oven-roasted vegetables pureed into a velvety soup

Roasted Vegetable Soup

Name: Roasted Vegetable Soup
Prep time: 15 min
Cook time: 50 min
Total time: 1 h 5 min
Yield: About 8 cups
Cuisine: American
Ingredients: 2 cups butternut squash, peeled and cubed; 3 large carrots, cut into 1-inch pieces; 2 medium parsnips, cut into 1-inch pieces; 1 large yellow onion, quartered; 4 Roma tomatoes, halved; 6 cloves garlic, unpeeled; 3 tablespoons olive oil; 1 teaspoon fresh thyme leaves; Kosher salt and black pepper; 4 cups vegetable broth; 1/2 teaspoon smoked paprika; 2 tablespoons heavy cream or coconut cream

Prep Time

15 min

Cook Time

50 min

Total Time

1 hr 5 min

Servings

About 8 cups

Difficulty

Easy

Cost

Budget

Sarah Chen

February 14, 2026(Updated March 14, 2026)

Most vegetable soups start by sauteing diced vegetables in a pot, and there is nothing wrong with that. But roasting those same vegetables first transforms a simple soup into something extraordinary. The high, dry heat of the oven caramelizes the natural sugars in carrots, tomatoes, butternut squash, and onions, creating layers of deep, sweet, almost smoky flavor that you simply cannot achieve by boiling.

This soup is a celebration of autumn and early winter, when root vegetables are at their peak. The technique is straightforward: toss everything on a sheet pan with olive oil and a few cloves of garlic, roast until golden and slightly charred at the edges, then blend with broth until silky smooth. A swirl of cream is optional but luxurious.

What you end up with is a soup that tastes like you spent all afternoon in the kitchen, but the oven does most of the work. It is naturally vegetarian and vegan-friendly, freezes like a dream, and makes the house smell incredible. A chunk of crusty bread on the side, and dinner is served.

Ingredients

Roasted Vegetables

2 cups 2 cups butternut squash, peeled and cubed, peeled, seeded, cut into 1-inch cubes
3 3 large carrots, cut into 1-inch pieces, cut into 1-inch pieces
2 2 medium parsnips, cut into 1-inch pieces, cut into 1-inch pieces
1 1 large yellow onion, quartered, quartered
4 4 Roma tomatoes, halved, halved
6 cloves 6 cloves garlic, unpeeled, unpeeled
3 tablespoons 3 tablespoons olive oil
1 teaspoon 1 teaspoon fresh thyme leaves
Kosher salt and black pepper, to taste

Soup

4 cups 4 cups vegetable broth
0.5 teaspoon 1/2 teaspoon smoked paprika
2 tablespoons 2 tablespoons heavy cream or coconut cream(optional)

Instructions

1
425°F
Preheat your oven to 425°F (220°C). Line a large rimmed baking sheet with parchment paper.
2
Spread the cubed butternut squash, carrots, parsnips, onion quarters, halved tomatoes, and unpeeled garlic cloves on the prepared baking sheet. Drizzle with olive oil, sprinkle with thyme, salt, and pepper, and toss to coat evenly. Arrange in a single layer.
Note:Do not overcrowd the pan — use two sheet pans if needed. Overcrowding causes steaming instead of roasting.
3
425°F35-40 minutes
Roast for 35-40 minutes, stirring halfway through, until the vegetables are deeply golden, caramelized, and tender when pierced with a fork.
Note:The charred edges are where the best flavor lives — do not be afraid of some dark spots.
4
Squeeze the roasted garlic cloves out of their skins and add all the roasted vegetables to a large pot. Add the vegetable broth and smoked paprika.
5
10 minutes
Bring to a gentle simmer over medium heat and cook for 10 minutes to let the flavors meld.
6
Use an immersion blender to puree the soup until completely smooth. Alternatively, carefully transfer in batches to a blender, venting the lid to release steam, and blend until smooth.
Note:If using a regular blender, never fill it more than two-thirds full with hot liquid. Hold the lid down firmly with a towel.
7
If the soup is too thick, add more broth a quarter cup at a time until you reach your desired consistency. Season with additional salt and pepper to taste.
8
Ladle into bowls and add a swirl of cream or coconut cream if desired. Serve with crusty bread.

Substitutions

Butternut squashSweet potatoes or pumpkin

Both roast beautifully and produce a similarly sweet, creamy soup.

ParsnipsTurnips or extra carrots

Turnips add a peppery note. Extra carrots keep things sweet and simple.

Heavy creamCoconut cream or cashew cream

For a dairy-free version, coconut cream adds richness without dairy. The coconut flavor is subtle after blending.

Vegetable brothChicken broth

Chicken broth works if you are not aiming for a vegetarian soup. It adds a bit more body.

Tips & Storage

Pro Tips

Cut all vegetables to roughly the same size so they roast evenly. Denser vegetables like squash should be cut slightly smaller than softer ones like tomatoes.
Do not skip the roasting step — it is what makes this soup special. Boiled vegetables will produce a much flatter flavor.
For a chunkier soup, blend only half the vegetables and stir the rest in whole for varied texture.
A squeeze of lemon juice at the end brightens the flavors beautifully — add just a tablespoon before serving.
This soup gets better as it sits, making it an excellent candidate for making ahead.

Storage

This soup stores exceptionally well. Refrigerate in an airtight container for up to 5 days. Freeze in portion-sized containers or zip-top bags for up to 3 months. Leave an inch of headroom in containers for expansion. Thaw overnight in the refrigerator before reheating.

Reheating

Reheat gently on the stovetop over medium-low heat, stirring occasionally, until heated through, about 5-8 minutes. Add a splash of broth if the soup has thickened. Microwave works well — heat in a covered bowl for 2-3 minutes, stirring halfway through. The cream swirl should be added fresh after reheating.

Nutrition Facts

Per serving (About 1 1/3 cups) · 6 servings

Calories180

Protein3g

Carbohydrates28g

Fat8g

Fiber6g

Sugar10g

Sodium480mg

Nutritional values are approximate and may vary based on specific ingredients and preparation methods.

Frequently Asked Questions

Can I use pre-cut butternut squash?: Absolutely. Pre-cut squash from the produce section saves time and works perfectly. Just make sure the pieces are roughly one-inch cubes for even roasting.
Why do you roast the garlic unpeeled?: Roasting garlic in its skin protects it from burning while allowing it to become sweet and buttery soft. The cloves squeeze right out of the papery skins after roasting.
Can I add other vegetables?: Yes — sweet potatoes, red bell peppers, fennel, and cauliflower all roast beautifully and work in this soup. Avoid vegetables with high water content like zucchini, which can make the soup watery.
Is this soup good for meal prep?: It is one of the best meal prep soups. The flavor actually improves overnight, and it reheats perfectly. Portion it into individual containers for grab-and-go lunches all week.

Tags

American Vegetarian Vegan Gluten-Free Dairy-Free Healthy Oven Stovetop Meal Prep Weeknight Dinner

About Sarah Chen

Sarah Chen is a professional recipe developer and food editor with over a decade of experience in test kitchens and food media. She trained at the Culinary Institute of America before spending six years developing and testing recipes for national food publications, where she honed her ability to translate restaurant techniques into approachable home cooking. At RecipePool, Sarah leads recipe development, ensuring every dish is tested at least three times for clarity, accuracy, and genuine deliciousness. When she is not in the kitchen, she is browsing farmers markets and collecting vintage cookbooks.

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Instructions

1
425°F
Preheat your oven to 425°F (220°C). Line a large rimmed baking sheet with parchment paper.
2
Spread the cubed butternut squash, carrots, parsnips, onion quarters, halved tomatoes, and unpeeled garlic cloves on the prepared baking sheet. Drizzle with olive oil, sprinkle with thyme, salt, and pepper, and toss to coat evenly. Arrange in a single layer.
Note:Do not overcrowd the pan — use two sheet pans if needed. Overcrowding causes steaming instead of roasting.
3
425°F35-40 minutes
Roast for 35-40 minutes, stirring halfway through, until the vegetables are deeply golden, caramelized, and tender when pierced with a fork.
Note:The charred edges are where the best flavor lives — do not be afraid of some dark spots.
4
Squeeze the roasted garlic cloves out of their skins and add all the roasted vegetables to a large pot. Add the vegetable broth and smoked paprika.
5
10 minutes
Bring to a gentle simmer over medium heat and cook for 10 minutes to let the flavors meld.
6
Use an immersion blender to puree the soup until completely smooth. Alternatively, carefully transfer in batches to a blender, venting the lid to release steam, and blend until smooth.
Note:If using a regular blender, never fill it more than two-thirds full with hot liquid. Hold the lid down firmly with a towel.
7
If the soup is too thick, add more broth a quarter cup at a time until you reach your desired consistency. Season with additional salt and pepper to taste.
8
Ladle into bowls and add a swirl of cream or coconut cream if desired. Serve with crusty bread.

Substitutions

Butternut squashSweet potatoes or pumpkin

Both roast beautifully and produce a similarly sweet, creamy soup.

ParsnipsTurnips or extra carrots

Turnips add a peppery note. Extra carrots keep things sweet and simple.

Heavy creamCoconut cream or cashew cream

For a dairy-free version, coconut cream adds richness without dairy. The coconut flavor is subtle after blending.

Vegetable brothChicken broth

Chicken broth works if you are not aiming for a vegetarian soup. It adds a bit more body.

Tips & Storage

Pro Tips

Cut all vegetables to roughly the same size so they roast evenly. Denser vegetables like squash should be cut slightly smaller than softer ones like tomatoes.
Do not skip the roasting step — it is what makes this soup special. Boiled vegetables will produce a much flatter flavor.
For a chunkier soup, blend only half the vegetables and stir the rest in whole for varied texture.
A squeeze of lemon juice at the end brightens the flavors beautifully — add just a tablespoon before serving.
This soup gets better as it sits, making it an excellent candidate for making ahead.

Storage

Reheating

Frequently Asked Questions

Can I use pre-cut butternut squash?

Absolutely. Pre-cut squash from the produce section saves time and works perfectly. Just make sure the pieces are roughly one-inch cubes for even roasting.

Why do you roast the garlic unpeeled?

Roasting garlic in its skin protects it from burning while allowing it to become sweet and buttery soft. The cloves squeeze right out of the papery skins after roasting.

Can I add other vegetables?

Yes — sweet potatoes, red bell peppers, fennel, and cauliflower all roast beautifully and work in this soup. Avoid vegetables with high water content like zucchini, which can make the soup watery.

Is this soup good for meal prep?

It is one of the best meal prep soups. The flavor actually improves overnight, and it reheats perfectly. Portion it into individual containers for grab-and-go lunches all week.

Roasted Vegetable Soup