Place 2 slices of bread on a cutting board and spread each slice with about 1 tablespoon of softened butter or butter spread. Flip one of the pieces of bread over and top it with 2 tablespoons of pesto, spreading out evenly over the surface of the bread. Top the pesto with half of the chopped turkey, a couple of slices of tomato, and finally, half the sliced mozzarella. Place the other slice of bread on the top, butter side up.

Repeat with remaining ingredients to assemble second sandwich.

Spray a skillet with non-stick cooking spray and place over medium heat. Carefully place sandwich in pan and allow to cook till nicely browned on one side. Use a spatula to carefully lift up the sandwich and guide it with your other hand back into the pan to cook on the other side. If some of the ingredients fall out, just place them back inside. Cook until browned and cheese has melted.

Remove to a cutting board and slice in half. Repeat with remaining sandwich.