Pesto, Roasted Tomato, and Mozzarella Sandwich

One Batch Roasted Tomato, Pesto, and Balsamic Vinaigrette
Focaccia
Log of Mozzarella, Sliced

Slice and toast Focaccia.
Spread a thin amount of pesto.
Stop with mozzarella slices, a layer of tomatoes, a little arugula, and a drizzle of balsamic vinaigrette.