Chop onion, tomato, capsicum and coriander leaves in a choper and put in a bowl.
Take some batter in a bowl,add salt and spinach puree and mix well.
Heat a little oil on a non-stick tawa and spread small amount s of batter to make 3 little uttappams at a little distance from each other.
Spread a little chopped vegetables on each.sprinkle little green chilles in each and cook on medium heat.
Dizzle a little oil,when the under side is done,turn them and cook the other side.
Remove the uttappams from the tawa.keep a cheese slice over one uttappam.spread little green chutney and place another uttapam over it.keep another cheese slice over the second uttappam and spread a little chutney and place the third uttappam over it.
Uttapam sandwich is ready,serve immidiately.