1. Heat oil in a large saucepan over medium heat. Add carrot and onion; cover and cook 3 minutes or until softened. Stir in ginger and garlic; cook 1 minute. Add curry, salt, and pepper; cook 30 seconds.
2. Stir in diluted broth and lentils; bring to a boil. Reduce heat; simmer, covered, 20 to 25 minutes or until lentils are tender. Stir in tomatoes; cover and simmer 5 minutes. Divide soup evenly among 4 bowls.