Mock Pork Barbeque

4 oz. tuna
1 tbsp. wine vinegar
1 tbsp. onion flakes
1 tbsp. brown sugar replacement
1 tbsp. green pepper flakes
1/2 tbsp. Worcestershire sauce
1/2 tsp. chili powder
1/2 tsp. celery salt
1 tsp. prepared mustard
1/2 c. catsup or 1/2 c. tomato sauce or 3/4 c. tomato juice