Flank Steak Carpaccio-Style with Spinach and Shaved Parmesan  - Filippo Berio

Ingredients

• 680 g to 907 g (1 /2 to 2 lbs) flank steak
• 1/2 cup balsamic vinegar
• 1 bag (1/4 kg or 10 oz) spinach, stems removed, leaves sliced into strips
• Salt and ground black pepper
• 4 to 6 tablespoons Filippo Berio Extra Virgin Olive Oil
• 1 chunk (42 g or 1 ½ oz) Parmesan cheese
• Crusty Italian bread