True philly taco veterans know that one must go to Jim's for the cheesesteak first. Common philly taco eating hours typically coincide with the busiest hours at Jim's. Therefore, getting the pizza first will result in a cold slice of pizza. In addition, the insulative properties of the bread and foil wrapping keep the cheesesteak nice and hot.
Order the cheesesteak to go, then walk to Lorenzo's and get your slice of pizza. Wrap the slice of pizza around the cheesesteak longwise. For the best experience, eat while standing in the back room of Lorenzo's and watching yourself enjoy.
Dude, these noobs think you should get the pizza first?
...Phucking Philly Taco Amatuers...