Peel and cut the vegetable into finger-thick chunks. Cut all the meat into 1-inch thick cubes. In a big skillet brown the meat on all sides; scrape the brown parts from pan; set aside.
Saute the onions until brown and set aside. Saute the vegetables and set aside.
Now put all ingredients in a big pot, in layers one by one, sprinkling each layer with salt and pepper. First the meat, then the onions, then the vegetables, then the potatoes, if used..
Pour the vegetable broth over the top. Bring to a boil over high heat, then reduce the heat to its lowest level and cover the pot tightly. Let the stew simmer for 1-1/2hours without stirring.
Serve directly out of the pot.