Bring a pan of water to a boil. Peel the pumpkin, remove the seeds and core, and cut into cubes. Cook for 10-15 minutes until soft.
Meanwhile, chop the onion and mince the ginger. Sauté onion, garlic, and ginger in olive oil until translucent. Add orzo, crispy chili oil, cinnamon, and red pepper; fry for 2 minutes. Stir in broth and plant-based cream.
Drain the cooked pumpkin and puree with an immersion blender. Stir raisins into the orzo mixture.
Add the pumpkin puree to the orzotto. Cook on low heat for 10-15 minutes until the orzo is soft.
Fry vegan meatballs in olive oil; set aside. Fry sage leaves in olive oil for 2 minutes over medium heat.
Serve orzotto with vegan meatballs, sage, walnuts, and optionally nutritional yeast flakes or pumpkin seeds.