Preheat the oven to 400°F and keep a ceramic or metal baking pan ready.
Heat 1tbsp oil in a saute pan, add onion, garlic and green chilies. Saute till onions turn translucent, about 4~5 minutes.
Now add the add rice and cook till the grains appear lightly toasted. Remove from the heat and spread the fried rice in the baking pan.
In a measuring cup, combine 2cups boiling water, tomato paste, salt and ground coriander (or dried thyme). Whisk to dissolve the tomato paste. Pour the tomato water over the rice and then stir in the peas. Bake for 25 minutes.
Peel back the foil, stir twice, seal the foil again, and then turn the pan 180°; this will help redistribute the heat over more even baking.
Bake another 30minutes, then remove from oven and remove the foil.
The grains should have absorbed the liquid and the rice should be firm, chewy, but not hard in the center.
If the rice is still hard and looks very dry, add a few tablespoons of water over the rice and bake another 10 minutes or so; if the rice is very wet, loosely cover to allow a little steam to escape and continue to bake another 8~10 minutes.
When done, remove from the oven and let stand covered for 5 minutes. Granish with chopped cilantro and serve hot.