MadEngineer:
Onion
Garlic
Green capsicum
Italian herbs
Steak finely sliced
Cheese
There's a million different ways of doing philly cheesesteak, google it and choose.
It amazes me how few places in NZ do a good one. I still haven't found a truly great one here. Pie Piper on K'Road is pretty decent.
I've tried a few times to make them myself, can't get close! I have all the right ingredients. Weirdly, the best one I have ever had, bar none, was at the foodcourt in Ala Moana shopping center in Honolulu. Green Peppers aren't optional IMO.
Same with Chicken and Waffles. One place in NZ does them justice, that's Peaches Hot Chicken.