6 cups water
1 tsp oil
1 1/2 cups chopped onions
2 garlic cloves, minced or pressed
1 fresh chile, seeded and finely minced
1 carrot, peeled and diced into 1/2 inch cubes
1 potato, diced into 1/2 inch cubes
2 tsp ground coriander
1 tsp ground cumin
3 cups (28 oz can) undrained canned chopped tomatoes
3/4 tsp salt
In a nonreactive soup pot, bring the lentils and water to a boil; then reduce the heat, cover, and simmer until tender, about 20 minutes.
Meanwhile, heat the oil in a medium saucepan and saute the onions, garlic, and chile for 5 minutes. Add the carrots, potatoes, coriander and cumin and saute for another minute, stirring to prevent sticking. Remove from the heat and set aside.
When the lentils are tender, stir the canned tomatoes into the soup pot. Add the salt and sauteed vegetables. Cover and simmer for 10 to 12 minutes, until all of the vegetables are tender. If you like, take 2 cups of the soup out and puree them, then add back to the soup.