In a large skillet, cook ground beef, onion, and celery until meat is browned and onion is tender. Drain off excess fat.
Stir in tomato sauce, water, oats, seasoned salt, Worcestershire sauce, chili powder, pepper, and Tabasco sauce.
Simmer, uncovered, until mixture reduces to desired consistency, about 25 to 35 minutes. Spoon about 1/3 to 1/2 cup of ground beef mixture into each bun.
Calories per serving: 249