Tawa pulao is actually pulao made on a pan like Mumbai Pav Bhaji. Pulao is made from Rice and it's a very popular Indian street food.
You can use butter also to make tawa pulao but I have used ghee and oil both for better taste.
You can add boiled or steamed carrot, peas and potato. If you are using boiled veggies then add after the step of cooking tomatoes.
It is not necessary to add water in the mixture but if in case the mixture is dry then add little water, do not add too much of water otherwise rice will become soggy.
I have not added green chilly but to make it spicy add as per your taste.