Heat the butter in a broad pan, add the chopped onion,
and saute on a medium flame for a minute.
Add chopped tomato, and saute on a medium flame for a minute.
Add coloured capsicum, corn and cheese and saute on a medium flame for a minute.
Finally, add spices like black pepper, chilli flakes, and oregano and saute on a medium flame for a minute while stirring continuously.
Cut the crust of bread and apply butter over the bread slices.
Then, Apply a generous portion of the veggie mixture evenly on the bread slice.
Sandwich it with another bread slice.
Apply the butter on the bread slice and keep aside.
Place this sandwich in a pre-heated griller with the butter side facing downwards.
Now, apply butter to another bread slice.
Grill the sandwich till it turns crispy and brown from both sides.
Cut the sandwich diagonally into two portions.
Serve immediately.