Possible Clues:

• Small pieces of toasted bread with a topping
• Italian appetizer, small pieces of toast with toppings
• 'Little toasts,' in Italian
• Trattoria's tiny toast
• Crunchy Italian appetizer
• Italian appetizers
• Italian bread-and-toppings appetizer
• Toasted bread antipasti
• Appetizer whose name means "little crusts" in Italian
• Small pieces of fried bread with a savoury topping