Chop onions and water chestnuts. Thinly slice scallions and separate dark green parts to save or garnish Mince garlic and ginger. Chop jackfruit into smaller pieces.
Wash each leaf of lettuce and dry. Set aside.
Heat a large saute pan over medium heat and heat up olive oil. Add the onions, scallions, ginger, and garlic. Saute for 2-3 minutes till onions are translucent
Add the tofu and crumble. Saute for 10 - 15 minutes to reduce the moisture in it. Add the water chestnuts and cook for another 2-3 minutes to keep reducing the moisture.
Add the hoisin sauce, tamari sauce, sesame oil, rice vinegar, and sriracha sauce. Mix all ingredients well.
Add the jackfruit and cook for another 5 minutes.
Add fresh ground pepper and the green scallions and mix well.
Serve on top of fresh lettuce and sprinkle with some sesame seeds and enjoy!