Pesto Olive Grilled Cheese Sandwiches

8 slices of whole wheat bread
8 slices of swiss cheese
about 2 teaspoons of pesto
about 2 teaspoons of chopped kalamata olives
melted unsalted butter, about 2 tablespoons

1. Prepare your skillet, griddle or sandwich maker accordingly. I use a waffle maker/griddle which has to be pre-heated
2. Brush one side of each slice of bread with the melted butter.
3. Build the sandwich as follows: bread, swiss cheese, pesto, olives, swiss cheese, and bread. The bread should be butter side out.
4. Place the sandwich on your skillet, griddle or sandwich maker and cook until cheese is melted and the bread is toasted.
5. Serve warm and enjoy!