Prepare Salsa: Mix all salsa ingredients in a small bowl; set aside to let flavors meld.
Sauté Aromatics: Heat oil in a skillet over medium. Sauté onion (5 min), then add garlic and tomato paste (1 min).
Simmer Jackfruit: Add shredded jackfruit, spices, and broth. Simmer for 10–15 minutes until liquid is absorbed and jackfruit is tender.
Crisp (Optional): Turn heat to medium-high for 3 minutes for crispy edges. Stir in lime juice.
Assemble: Fill warm tortillas with jackfruit meat, sliced avocado, shredded lettuce, and the fresh mango salsa.