Add the onions, garlic and red bell pepper and cook until onions are translucent, stirring occasionally, about 5 to 7 minutes.
Add the rice, stir with a wooden spoon to coat well, and cook for 1 minute.
Add the water, vegetable bouillon, tomato puree and salt. Bring to a boil, stir and decrease the heat to low.Cover and cook for about 20 minutes or until the water is absorbed and the rice is tender.