If you were asked to picture your dream sandwich, which fillings would first come to mind? Perhaps hearty slices of meat, creamy cheese, or fresh crunchy veggies are essential, or maybe you'd have a creamy, tangy, or spicy sauce in there. But, how about fruit? At first thought, this might seem like an odd choice, and probably not something you'd throw into your everyday sandwich. However, it can be an absolute game-changer for adding flavor and texture to a lackluster sandwich.