Toast the bread in a toaster or on a skillet.

Apply softened butter over the toasted bread.

Cut the bread into small dices and keep aside.

Heat 1 tablespoon of oil in a wok or kadai on medium heat and add mustard seeds.

Allow the mustard seeds to crackle and add onions and green chillies.

Saute the onions on medium heat until soft and tender.

Add the tomatoes, curry leaves, turmeric powder, and sambar powder.

Stir and cook the tomatoes until they turn lightly soft.

Add salt and the toasted buttered bread pieces.

Stir well to combine all the ingredients and stir fry on medium to high heat for a couple of minutes.

Check salt levels.

Stir in the chopped coriander leaves.

Serve hot.