1. Spread out all of the vegetables on a baking sheet.
2. Drizzle a little olive oil over the top, then bake at 350ºF for 30 minutes.
3. Once they are warm, take them out of the oven and add them to the blender along with the remaining ingredients.
4. Mix thoroughly until the desired consistency is achieved.
5. Transfer to a covered container and store in the refrigerator.