Cook the brown basmati rice as per the packet instructions, except use your chosen vegetable stock rather than water to cook it.
While the rice is cooking gently cook your onion and garlic in a little water. Add about 2cm/two inches of cold water to a pot and then add your onions and garlic. Stir gently adding more water as the water evaporates. Continue doing this for between five and seven minutes until the onions are soft and have a slight golden colour about them. Set aside.
Cook your frozen peas as you would normally for about four minutes. While they're cooking, clean and if necessary peel your carrots and then finely grate them.
Once your rice is cooked, and drained if required, add the onions, garlic, carrots and peas to the mixture and stir. Finally, add two to three tablespoons of Tamari or low salt soy sauce and stir through.
You can serve warm, as is, or let it cool and serve cold.