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Secret's out! Hidden restaurant menu items for insiders

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Subway Pizza Sub

Price: $4.50, plus tax for 6-inch sub

It's the joining of two fast food heavyweights: pizza and sandwiches.

Although Subway's Pizza Sub was available on its official menu for only a limited time, customers can still order the sandwich with spicy pepperoni, cheese and marinara sauce. They just have to ask.

Source: Subway