Take a bowl add chopped onion, Chopped Tomato, green chilli, Salt and mix well.
Spread Tomato ketchup and shezwan sauce on each bread slice.
Spread Tomato and onion mixture on each bread slice.
Spread some greated cheese.
Sprinkle some oregano and ews chilli flakes on each bread slice.
Transfer on a baking tray, put the tray in preheated oven and bake for 5 mins.
Serve hot with mayonnaise and ketchup.