Tuna and Zucchini Melts

Directions

1. Stir together the tuna, mayonnaise, celery, zucchini, onions and mustard until well combined.
2. then stir in the cheese.
3. Spread 1/4th of the mixture on 4 pieces of bread.
4. Place the bread on a cookie sheet and broil for 4 minutes or until the tuna mixture is heated.
5. Top each with a tomato slice and broil for 2 minutes more.
6. Remove from oven and top with the remaining bread.