I have my own custom creation; Foot long Toasted Meatball Sub on Wheat Bread with Swiss Cheese, lots of Onion, Capsicum, Pickles, Jalapeños and Black Olives with Ranch sauce, a dash of hot chilli sauce and a sprinkling of pepper. (no lettuce or tomato)
It's Really delicious and delightfully spicy. Don't overdo it on the hot chilli though because it may make it simply too hot to eat. Only order a dash of chilli or none at all if you can only just handle Jalapeños.