Heat oil in a pan add mustard seeds, and when they crackle add carrots and green chilly and fry for a while. Add rice and dal and enough water to cook. Add turmeric and cook on medium heat. You can also a rice cooker to cook rice and dal. When almost done, add salt and green peas. When rice and dal is cooked well remove from flame and add lemon juice and mix well. Serve hot, it’s a good lunch to go too.