Into a cast iron or sauté pan add your choice of oil over medium heat. Add your jackfruit, gently breaking apart in your hands prior to adding to the pan. Cook the jackfruit for 6 minutes or so to cook off the brining liquid remaining. Then carefully add your mushrooms and allow to cook down and the liquid to be released for about 10-12 minutes or so. Stir often. Then add your spices and smoke/soy sauce and s&p. Stir often. The mixture will reduce down tremendously and soften.
Slice your rolls and set them on a baking sheet cut side up. Grate your cheese. Turn your broiler on. Once the mushrooms are done, carefully load them up on both sides of the rolls. Carefully add your shredded cheese and/or liquid mozzarella on top of each mound of mushrooms/jackfruit. Broil until the cheese is melty and toasted up which occurs quickly so keep a watchful eye.
The jackfruit will easy pull apart and will resemble the texture of pulled pork.