Take the dosa batter in a bowl and add water to get the desired consistency.
Heat a non-stick tawa and grease it with oil. When the tawa becomes hot, pour one ladleful of batter and spread it in circular motion, not making the uttapam too thin.
When tiny holes appear on the surface of the uttapam, add the chopped vegetables. Drizzle oil around the edges and at the center.
Reduce the flame to medium. Cover and cook on medium flame for a few seconds. By this time the veggies would have cooked. Gently press it with the back of a spatula.
Flip the uttapam to the other side and cook on medium flame for 2-3 minutes.
Transfer to a serving plate. Serve with coconut chutney and sambar.