Traditionally this sandwich is made with meat(thinly sliced pieces of steak) and cheese stuffed in a long roll. But I ate vegetarian version of this sandwich at a mall and loved it . In vegetarian version, mushrooms along with peppers and onions are added as a substitute for meat. Mushroom has that meaty taste so they go pretty well in this sandwich. Ingredients 4 hot dog rolls or hogie rolls 2 tsp canola oil 1 cup sliced white button mushrooms 1/2 cup sliced red bell pepper 1/2 cup sliced green bell pepper 1/2 cup sliced onions 1 Jalapeno sliced into rings 4 slices Provolone cheese Mayo or ketchup as required Method First saute sliced mushrooms in a tsp of canola oil. Saute until nice and brown. To get perfect brown color spread them evenly without crowding in a pan. After mushrooms are nicely browned remove them on a paper towel. Add remaining 1 tsp oil and saute all the veggies until nicely charred but crisp to eat. Remember to add Jalapenos last while sauteing veggies. Mix tog