In a medium pot, heat the coconut oil on medium heat.
Once the oil is heated, sauté chopped garlic, diced onion, pumpkin chunks, diced carrots, salt, and pimento berries for about 2 minutes.
Once the vegetables are soft and fragrant, add rinsed brown rice and stir to combine.
Pour in the water and coconut milk, and stir to combine. Allow it to simmer for 30 minutes on medium heat, stirring occasionally.
After 30 minutes, reduce to low heat and cover. Cover by placing a piece of parchment paper on the pot and cover with the lid.
Leave lid on and cook for 30 more minutes, until rice is steamed and fluffed. Remove thyme stems before serving.