Chop jackfruit into small pieces. Sprinkle with brown sugar, chili powder, garlic powder and pepper. Stir to coat.
Heat oil in large skillet over medium heat. Add jackfruit and cook, stirring occasionally, 2-3 minutes, or until lightly browned. Add ketchup, tomato sauce, mustard and molasses. Stir and reduce heat to low. Cover and simmer 15 minutes, stirring occasionally.
Mash avocado, lime juice and salt in large bowl. Add cabbage and sunflower seeds. Stir to coat.