To assemble sandwiches, spread both sides of bread with butter. Place roll slices, a few at a time, in the sandwich press or indoor grill. Cover and cook about 4 minutes or until bread is toasted, turning if necessary
Immediately after bread is toasted, spread 3 tablespoons pesto on half of the roll slices. Top with mozzarella, tomato slices, and a few fresh basil leaves. Top with the remaining bread slices
Cook in skillet until well browned, add the remaining butter to the skillet and flip each sandwich. Cook until the cheese is melted and the sandwich is browned
