Cut the edges of breads. With rollingpin flatten the breads and make thin sheet

Firstly, take 2 bread slices and using water,press and seal 2 bread slices together.
now spread butter over the bread slices.in half portion of the bread,spread sauce and in rest of the part spread cheese.

On one side top bread with1 tbsp carrot cabbage and onions.sprinkle ¼ tsp pepper powder and pinch salt.
roll tight making sure both the layers are intact.
now wrap in cling wrap tightly. refrigerate for 15-20 minutes or until it sets well.

After 20 minutes slice the sandwich.it's ready to serve.

I put tadka(mustard seeds +curry)over the bread pieces.(optional)

You can spread jam/chutney/chocolate syrup,for stuffing paneer/sprouts etc of your choice.