Dinner in a Pumpkin

I started making this every Halloween--I love it!!

1 small to medium Pumpkin
2 TBS vegetable oil
2 TBS soy sauce
1 onion chopped
1.5-2lbs ground hamburger
2 TBS brown sugar
1 can sliced mushrooms
1 can cream of chicken soup
1 1/2 cups of cooked rice
1 can waterchestnuts, chopped (optional)

Cut upen pumpkin and thoroughly clean out pulp and seeds. Preheat oven to 350 degrees. In a large skillet saute onions in oil until tender. Add meat and brown. Drain drippings. Add soy sauce, sugar, mushrooms and soup. Simmer 10minutes, stirring occassionally. Add cooked rice and wterchestnuts. Spoon micture into clean pumpkin. replace lid. Place on baking sheet and bake 1-2 hours or until pumpkin is tender. Remove lid and serve with meat of pumpkin.