Smash the potato, add the onions,chat masala and salt and mix well.
Beat an egg to coat the patties
Take the Bun and with the help of the knife make a circle on the top and remove the inner part of it. Press the corners and the base carefully. It should look like a pot from inside
Heat 2 tbsp oil and allow it to heat
From the smashed potato mixture make a lemon sized ball, flatten it carefully and coat it with the beaten egg. Shallow fry it on a pan. Once done remove it on a tissue paper.
Prepare an omelette with the remaining egg or if required beat another egg.
Assembling the bun - Add a tsp of mayo to the Bun ,then add a tsp of cheese over it place a piece of fried egg. Place the fried patty and give it a slight press. Place a piece of fried egg and add a slice of capsicum and cover the Bun .
Prepare the remaining buns in the same way.
Final touch : toast the buns on both the sides and serve hot with tomato sauce.