1 (6 1/2 oz.) can tuna, drained, flaked
1 c. (4 oz.) shredded Swiss cheese
1/2 c. chopped celery
1/4 c. mayonnaise
1/4 c. plain yogurt
1 tbsp. finely chopped fresh parsley OR 1 tsp. dried parsley flakes
10 slices Vienna bread
butter

In medium bowl, combine all ingredients except bread and butter; mix well. Then spread 1/2 cup tuna mixture on each of 5 slices of bread. Cover with remaining bread slices. Spread butter on outside of each sandwich.

Heat large skillet over medium-high heat or heat griddle to 375 degrees. Add sandwiches; cook 1-2 minutes on each side or until bread browns and sandwiches are hot. Yields: 5 sandwiches.