Combine broth and dried lentils in a large Dutch oven, and bring to a boil. Cover, reduce heat, and simmer 30 minutes. Add chopped onion and next 6 ingredients (onion through salt); cover and simmer 15 minutes.
As the other reviews indicated, this is a vert good basic soup recipe. I made it yesterday afternoon to eat tonight (along with an open face tuna melt from CL). I am hoping the flavors will really mold together after sitting in the fridge overnight!