Take a medium-sized dough ball.
Coat it with dry flour and roll out a thin, large-sized roti.
Prick the roti with a fork.
Heat a kadai, place the rolled roti inside, and spread it evenly in a round shape.
Press the roti slightly and roast it on a low flame.
Apply some butter on the sides and center of the roti, then continue roasting on low flame until it becomes crisp.
Spread some tamarind jaggery chutney and tomato sauce over the roti.
Add 2 tbsp of masala and spread it in a thin layer over the roti.
Grate cheese over the masala and sprinkle some sev on top.
Immediately remove the nasta from the kadai and serve.
Roti Nasta tastes great with masala chaas!