Wash your Pumpkin.
Cut the top of the pumpkin off.
Hollow out pumpkin
Cut up celery, onion, and bell pepper.
Add chopped up veggies to browned ground beef.
Mix together.
Let simmer until veggies are tender.
Add soy sauce, mushrooms, brown sugar and cooked rice to beef mixture.
Fill pumpkin with beef mixture.
Replace top of pumpkin.
Bake for an hour.
Take out of oven.
Take pumpkin top off.
Enjoy. Recipe said when you scoop out beef mixture make sure you get some pumpkin.