In a large nonstick skillet, saute the onion and garlic in oil until tender. Add the lentils, chili powder, cumin and oregano; cook and stir for 1 minute. Add broth; bring to a boil. Reduce heat; cover and simmer for 25-30 minutes or until the lentils are tender. Uncover; cook for 6-8 minutes or until mixture is thickened. Mash lentils slightly.
