1. Sauté carrots and onion in hot olive oil in a Dutch oven over medium-high heat 8 to 10 minutes or until lightly browned. Add squash, broth, and orange zest; bring to a boil. Cover, reduce heat to medium, and simmer 20 to 25 minutes or until squash is tender. Stir in cream and next 5 ingredients. Cool slightly (about 10 minutes).
2. Process mixture with a handheld blender until smooth. Serve warm.