At first smash the boiled potato. Add chopped onion,tomato,green chilli, coriander leaves,salt and two tbsp
bhaja masala.

Mixed all together.spread butter on bread. Spread the potato mixture on the Bread. cover it with another sliced bread.

Now put it in sandwich maker. Or u can add 1 tbsp butter on non-stick pan. Put the sandwiches on it and fry both side till light brown. Serve it as evening snacks or tiffine for school.