Chop the broccoli into bite-sized florets. Cut remaining vegetables into thin strips.
Place the vegetables in a large bowl and add the turmeric as well as the salt and pepper. Mix all until well combined.
Grill the seasoned vegetables for about 10 – 15 minutes, until browned and well cooked.
In the meantime, heat the roti on a pan. Sprinkle on a few tbsps of cheese to one side and let it warm up just until the cheese melts on top and the other side is slightly browned.
Remove the roti from the pan and add the grilled vegetables along with some sliced avocado, spicy curry, chopped spinach, and mayonnaise.
Roll the roti with the filling in the center, and serve.