Heat butter in a pan. Add onions and sorte for a minute. Consecutively add all the grated and chopped vegetables. Don't cook much. Add the spices and the stuff is ready.

For the tortillas, dough chapati wala hi hai (kneaded dough with wheat flour and little salt). After rolling chapati, Cook on a tawa from both sides but not completely done (like fulka).

Now place a tortilla, put a layer of schezwan sauce. Then put the stuffing generously (spread evenly). Add grated cheese and over another tortilla put ketchup. Now invert the tortilla with ketchup over the cheese one and cook it on tawa over low flame. This will make the tortilla crisp and allow cheese to melt
Cut into pieces and serve hot. No need of any dip as it had layered ketchup and schezwan sauce