1. Preheat oven to 400°. Cook sausage in a large cast-iron Dutch oven over medium heat, stirring occasionally, 4 to 5 minutes or until browned. Remove sausage with a slotted spoon, and drain on paper towels, reserving drippings in Dutch oven.
2. Sprinkle chicken with salt. Cook chicken in hot drippings over medium-high heat 2 to 3 minutes on each side or until browned. Remove from Dutch oven. Add onion and next 3 ingredients to Dutch oven, and cook, stirring often, 5 minutes or until onion is tender. Add beans, next 4 ingredients, chicken, and sausage; cover with lid.
3. Bake, covered, at 400° for 40 minutes or until bubbly. If desired, sprinkle with Toasted Herbed Breadcrumb Topping.