Tawa roasting the veggies has to be done with care as overcooking or undercooking the vegetables will spoil the taste. Choose vegetables of your choice and sprinkle it with a little bit of olive oil . Close the lid of the tawa and cook it in a slow flame. Do not add water as the vegetables will get cooked in the steam and water produced in the vegetables. Make sure not to burn the veggies and cook for 20-25 mins and u get a nutrition packed food. Good to have it for dinner preferably after a heavy lunch
To get that oven roasted look of tomato , Slice in the tomato(preferably a vine tomato) into half and cook for a minute by turning it upside down.