Apply little butter on all rotis

Spread any one sauce on the roti and top with the leftover vege. If not using vegetable then add some crunchy stuff

Then spread another sauce on the second roti and top with more crunch. Then finish off with keeping the third roti on top

Spread cheese on the top

Note: You can use more than 3 rotis and multiple sauces and toppings

Keep this sandwich in microwave and heat on max for about 1 minute