Baked Open Tuna Sandwich

Baked Open Tuna Sandwich
1 canned Tuna flakes
2 tbsp sliced green Olives
1 Tomato chopped
1 onion chopped
1/4 cup each chopped Red and Yellow Capsicum
2 tbsp chopped fresh herbs
2 tbsp Dijon Mustard
4 tbsp Mayonnaise
1/4 cup grated Cheese
1 egg
Salt to taste
1/2 tsp pepper powder
8 slices Big Sandwich bread
4 cheese slice
Butter to apply on bread
Method
Take a tray. Brush the tray with butter. Take bread pieces. Apply butter on the bread slices. Take a bowl. Add all the other ingredients except the cheese slice in the bowl. Mix it. Spread the filling on the bread slices. Take the cheese slices and put it on top of the filling. Bake it at 180 degrees for 20 minutes in a preheated oven... Serve it with Potatoe wafers...