Blend the mint, ginger, garlic, chilies and lime juice with little water. Keep aside.
Heat oil in a pan. Temper with mustard seeds and dry red chili. After it stops spluttering, add the rice and urad dal. Saute for a few seconds.
Now add the mint paste and salt. Simmer on a low flame till dry. Add the cooked rice, roasted peanuts and fried onion.
Mix everything well and stir fry for 2 minutes. When done, switch off the flame and serve with pickles and papad / fryums / chips.