Take Two big potatoes, cook and smash them nicely. Add this Smashed potato to a mixing bowl.
To this, add finely chopped onion and along with it mix green Chilli, coriander leaves, garam masala, chili powder, salt, cumin powder and chat masala.
Mix them nicely and If you want you can also add the optional ingredients like lemon juice and pepper powder.
Take some slices of bread and apply tomato sauce on the bread slices.
Now add some Potato masala and evenly spread on bread slices.
Keep one cheese slice on one of the bread and cover the other bread slice.
Add little little butter on a pan and toast these stuffed bread on both the sides until they are evenly light brown in color.
Cover and cook the bread for 3 minutes in low flame so that cheese Between the Bread slices melts nicely.
Cut the sandwich in desired shape and serve it hot with chilli sauce or tomato sauce.
Yummy yummy cheesy potato sandwich is ready.