Heat oil in Dutch oven. Cook the sausage until well browned, breaking it up with spoon. If excess grease, remove, drain and set aside.
Pour excess oil from pot. Add the broth, vegetables, beans, thyme, salt, pepper, 1/3 garlic, sausage and return to heat. Mix well removing brown bits stuck to the bottom. Bring to boil. Reduce heat and simmer, stirring occasionally, about 1 hour until thickened and vegetables are tender.
Heat oven to 400F. In bowl combine breadcrumbs, parsley, olive oil, and remaining garlic. Sprinkle evenly over the cassoulet and place in the oven. Bake uncovered until the crust is golden brown, 10-15 min.