In a large bowl, mix together all ingredients except jackfruit. (You can puree the pear ahead of time or just mash it into the bowl mixture like I did).
Add jackfruit and mix thoroughly. Refrigerate and allow to marinate for at least 20 minutes (or up to an hour).
Put marinated jackfruit into crockpot and cook on high for 2–3 hours or low for 4–5 hours.
Mix together vegan mayonnaise, sriracha and lemon juice (add more sriracha if you want more heat).
Add bulgogi to tortillas and top with purple cabbage, cilantro and sriracha mayonnaise. Serve immediately.
Notes
With the right tortillas this recipe can be made gluten-free.