Grease your tawa with a little oil and rub it with half an onion. This is done to prevent the uthappam from sticking to the tawa.
Heat a Non stick tawa or an iron skillet, take a ladle of batter and spread it on the tawa in a circle. Uthappam should be thick as seen in the picture below.
Drizzle a tsp of oil around the uthappam .Small holes will appear on the top as it gets cooked.
Sprinkle the finely chopped vegetables evenly on the top .
After the base is cooked (golden brown in colour) flip it over to the other side .
Now drizzle a little oil around the uthappam .Let the other side also get cooked.