In a large skillet over medium heat, lightly coat the pan with avocado or olive oil and sauté onions and peppers for about 5 minutes, stirring occasionally. Add in jackfruit and taco seasoning. Continue to cook for another 5 minutes stirring occasionally. Add in black beans and sauteed greens along with the enchilada sauce. Reduce heat to simmer the contents on low for 10 minutes. The enchilada sauce will reduce and blend in with the veggies.