Begin by gathering all your fresh ingredients for the Turkey Focaccia Sandwiches, ensuring a smooth assembly process. In a food processor, blend mayonnaise and sun-dried tomatoes until the mixture is creamy and smooth. Set the spread aside.

Take your freshly baked focaccia bread and slice it in half horizontally. On one half, spread the creamy tomato-mayo mixture; on the other half, spread a layer of pesto.

Layer the fillings by placing a generous amount of sliced deli turkey on the mayo-covered half, followed by prosciutto, roasted red peppers, and fresh mozzarella.

Drizzle balsamic glaze over the top, and scatter fresh basil leaves and arugula. Carefully place the other half of focaccia on top and press down gently.

Slice the sandwich into quarters using a sharp knife. Plate the sandwiches and serve immediately for the best taste and texture.