1. Heat oil in large pot over medium heat. Add onion; saute 5 minutes or until softened.
2. Dissolve bouillon cubes in a little of the water. Add to onion in pot along with remaining water. Bring to boiling. Add lentils, oregano and salt. Cover and simmer, stirring occasionally, for 45 minutes or until lentils are tender. Add kale, black pepper and frankfurters; simmer, stirring occasionally, 10 minutes longer or until heated through. Makes 8 generous servings (18 cups).