Baked Pumpkin Soup

Preheat oven to 400 degrees Fahrenheit. Cut pumpkin into halves. Remove the seeds and cut into big chunks. (If the pumpkin is too hard to chop, steam for 10 to 20 minutes before cutting. Chop celery and onion. Put pumpkin, onion and celery in a big baking dish. Mix with olive oil. Bake for 45 minutes. Remove content from baking dish, put into a blender with water, and blend into a soup. Add water little by little so you get the thickness you want. Heat the soup in a pot and add salt to taste. Ladle into a serving bowl and garnish with paprika.