Boil and peel the potatoes.

Crumble the paneer.

Finely chop the green chilies and onion.

In a large mixing bowl, mash the boiled potatoes.

Add the crumbled paneer, chopped green chilies, chopped onion, and salt to the mashed potatoes.

Mix all the ingredients well and adjust salt to taste.

Place a tablespoon of the mixture over a slice of bread and spread it evenly.

Cover with another slice of bread to form a sandwich.

Melt butter in a skillet pan over medium heat.

Place the sandwich in the pan and grill on both sides until golden brown and crisp.

Serve the grilled cheese sandwich hot with a beverage of your choice.