THIS dish has been in my family since I was a little girl, and when presented to guests, brings rave reviews. It was created by my Dad, who still enjoys experimenting in the kitchen. Sometimes I prepare it the day before and warm it up while I'm cooking the rice.
In a small skillet, cook beef over medium heat until no longer pink; crumble beef. Drain beef and set aside; discard drippings. In the same skillet, saute the onion, celery, green pepper and garlic in butter until vegetables are crisp-tender, about 5 minutes.
Drain pineapple, reserving juice; set pineapple aside. Add enough water to the juice to measure 1/2 cup. In a bowl, combine the brown sugar, flour, vinegar, salt and pineapple juice mixture until smooth. Add to skillet. Bring to a boil. Cook and stir over medium heat for 2 minutes. Stir in beef and pineapple; heat through. Serve with rice.