Steps
1. Preheat the oven to 200°C (400°F).
2. Toss the pumpkin, garlic, and onion with olive oil, salt, and pepper on a baking tray.
3. Roast in the oven for about 25-30 minutes until tender and caramelized.
4. Transfer the roasted vegetables to a pot and add the vegetable broth. Bring to a simmer.
5. Use an immersion blender to puree the soup until smooth.
6. Stir in the heavy cream and nutmeg, then adjust seasoning if necessary.
7. Serve hot, garnished with toasted pumpkin seeds.