Spread butter on one side of each slice of bread. On the unbuttered side of one slice, layer mozzarella, followed by tomato slices and a sprinkle of salt and pepper. Add the basil and top with another layer of mozzarella before closing.
Grill:
Grill sandwich for about 2 to 3 minutes on medium-high heat until it’s golden and the cheese has begun to melt on that side. Flip the sandwich and grill on the other side for another minute or 2 until it’s golden and crispy and the cheese is melted.
Pack for school:
Wait for the sandwich to cool to room temperature before packing it inside a hard lunch container. Keep fruit and veggies separate and refrigerate everything until ready for school. Then pack it in a lunch bag with an ice pack, if necessary.