The only secret to this sandwich is to use the best ingredients you can find.  Goes great with a nice Chianti .

• Fresh Focaccia bread
• Fresh mozzarella cheese
• Plum tomatoes
• Fresh basil leaves
• Good quality Paremesan cheese
• Crushed red pepper flakes
• salt and freshly ground black pepper
• Extra virgin olive oil

Slice the focaccia in half horizontally . Layer mozzarella, slices of tomatoes, basil leaves & shaved parmesean . Sprinkle with salt , black pepper and red pepper flakes. Drizzle with extra virgin olive oil. Top with focaccia slice , brush with a small amount of olive oil. Grill in a panini press , in a grill pan  , or outside on a gas grill until cheese melts and outside is browned with grill makes