Chop onion and tomatoes to fine pieces. Remove the husk and cut baby corns into rings of 1" size.
Heat a pan with cooking oil. Sauté onions, once they are brown, add tomatoes along with salt, red chilli powder and coriander powder. Cook well so that it becomes dry.
Add baby corn pieces and cover and cook for 5 mins. Make sure the baby corns are well coated with masala.
Heat a tawa. Once its hot, spread with cooking oil. Pour one ladleful of dosa batter. Add oil, turn around and then cook for 1 min. Turn it once again and place a spoon of Baby Corn Masala and pack like a napkin.
You can make this two ways. Either place the Masala on the top side and turn around. This way there are chance for the masala to get stuck to the tawa. Second, once both sides are cooked, place masala in the middle and fold it, covering the masala and let it cook for 1 min. Either way it tastes yummy.
Serve hot Baby Corn Masala Dosa with Coconut Chutney or just like that.