In a large sheet pan place the seeded red bell peppers, onion, and garlic. Drizzle with the oil and sprinkle with paprika, Italian seasoning, salt and pepper.
Stir the veggies around the pan with your clean hands to evenly coat them with the seasonings, then arrange in a single layer. Roast for 25-30 minutes until golden-brown in spots and tender.
Once roasted, transfer to a soup pot and stir in the vegetable stock and tomato passata/sauce. Bring to a boil, reduce the heat, and simmer for 15 minutes. Stir in the balsamic vinegar, then using a hand blender blend until smooth.
Serve with toasted bread or croutons and fresh chopped parsley.
Notes
- For an extra smoky flavor, char the peppers a little longer under the broiler for the last 2-3 minutes of roasting.
- If you don't have a hand blender, carefully transfer the hot soup to a regular blender (in batches) and blend until smooth. Be sure to vent the lid to allow steam to escape.
- Storage: Leftover red pepper soup can be stored in an airtight container in the refrigerator for up to 4-5 days, or frozen for up to 3 months.Nutrition information is an estimate, calculated automatically. Values vary with brands, substitutions and portion sizes.