Easy Crispy Chicken Caesar Sandwich

Ingredients

• 4 small rolls (mini sub, baguette, sourdough, or pane di casa)
• 80 g (2 ¾ oz) unsalted butter, at room temperature
• ½ tsp freshly minced garlic
• 1 tbsp finely chopped flat-leaf (Italian) parsley
• ½ tsp salt
• ½ cup (50 g) freshly grated Parmesan (or shaved if preferred)
• 1 cup (250 g) whole-egg mayonnaise
• 2 anchovy fillets, finely chopped (optional)
• 1 tbsp freshly squeezed lemon juice
• 1 tsp Dijon mustard
• 1 tsp Worcestershire sauce
• ¼ tsp freshly cracked black pepper
• 1 whole cos (romaine) lettuce or 2 baby cos lettuces, shredded
• 4 freezer-friendly chicken schnitzels, cooked
• ½ cup (50 g) freshly grated Parmesan, for serving