Mediterranean Tuna Melt

2 Cans (6 ounces each) chunk light tuna packed in water, drained

1 can (15 1/2 ounces) garbanzo beans, drained and rinsed
1/4 cup minced red onion
1/4 cup fresh lemon juice 
1/4 cup cup chopped green or black olives (your choice I prefer the black) 
2 tablespoons capers, rinsed
1 tablespoon olive oil
1 tablespoon Dijon mustard 
salt and pepper 
1 loaf (8 ounces) italian bread, split lengthwise 
1/2 cup grated parmesan cheese
Directions:
1. Heat broiler.
2. In a bowl, combine first eight ingredients (though mustard): season with salt and pepper
3. Lay bread, cut side up, on a broiler proof baking sheet; top with tuna mixture and pack to edges of bread.
4. Sprinkle with parmesan. Broil until golden, 4 to 8 minutes. 
5. Cut into pieces; serve. 
Serves 4-6