The same premium beef patty made from chopped sirloin is sandwiched between two fluffy buns and complemented by caramelized onions, crescenza, prelibato gorgonzola, bacon, arugula, and thousand island dressing. The two different types of cheeses in this burger meld into each other to create a creamy, melty and salty bonding agent that holds the loose ingredients all together, with the caramelized onions providing a chargrilled sweetness, the bacon contributing to a smokey, fatty, and salty bite, the arugula refreshing the palate with its peppery evergreen freshness, and the thousand island sauce supplying its distinctive sweet, tangy and creamy combination of flavors.