What's better than a philly cheesesteak? A bite size version you can have more than one of with no guilt! Pack all the flavors of this classic sandwich onto a mini crostini for a party appetizer everyone will rave about. Chef Scott Hamilton shares the recipe for this poppable summer snack. All the cooking is done on the grill! Charred veggies, perfectly grilled steak, even throw the crostinis on the grates for toasting.