1 1/2 lb. hamburger
1/2 c. chopped onion
1/2 c. chopped mushrooms
1 tsp. salt
3 tbsp. soy sauce
3 tbsp. cornstarch
1 tsp. sugar
1/8 tsp. pepper

Form into balls and brown.

SAUCE:

3 tbsp. vinegar
2 tbsp. oil
2 tbsp. brown sugar
1 tsp. soy sauce
Juice from 13 1/2 oz. can pineapple chunks

Boil, then add 1 diced green pepper. Add 1 tablespoon cornstarch; boil until thick. Add meatballs and pineapple. Simmer and serve.