2 cans ( 6 1/2 oz.) tuna fish
1/2 or more red onions chopped
1 large stalk celery chopped
2 fresh tomatoes cut up in pieces
1/4 tsp. crushed red pepper (or to taste)
1 tsp. basil leaf ( fresh or dried)
1/8 tsp. black pepper
4 oz. Mozzarella (cubed)

Mix all ingredients and add salad dressing. Chill. Serve in Pita Bread