- Preheat the oven to 400°F (200°C).
- In a large bowl, toss the chopped vegetables with olive oil, salt, and pepper.
- Spread the vegetables on a baking sheet and roast for 25-30 minutes until tender.
- In a large pot, sauté the diced onion and minced garlic until fragrant.
- Add the roasted vegetables and vegetable broth to the pot.
- Bring to a boil, then reduce heat and simmer for 10 minutes.
- Use an immersion blender to puree the soup to your desired consistency.
- Serve hot, garnished with fresh herbs.
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