1. Preheat broiler.
2. In small bowl combine tuna, celery, red onion, mayonnaise and mustard.
3. Add seasonings. Mix well.
4. Toast bread and spread with tuna mixture. Top with cheese. (If desired, cut into narrow slices and weave)
5. Broil until tuna is hot and cheese has melted. DEAL-A-MEAL CARDS USED: 1 Bread 2 Meat 1 Fat 225 Calories