Cut off the top of the pumpkin and thoroughly clean out the seeds and pulp. Preheat the oven to 120ºC . Brown the sausage, breaking into small pieces as it cooks. Drain grease and add onion, celery and green pepper. Cook a few minutes. Add soup mix to boiling water and cook a few minutes. Combine all ingredients and pour into the clean pumpkin shell. Replace pumpkin top and place pumpkin on a baking sheet. Bake one hour or until pumpkin is tender. Stir once halfway through. Remove pumpkin lid and serve, scooping out some of the cooked pumpkin into each bowl.