The celebrated French cassoulet influenced our version, which substitutes chicken breast for the traditional duck or goose. Sweet sausage and white beans add heft to this hearty one-pot meal.
Preheat oven to 375 degrees. Stir together breadcrumbs, cheese, 1 teaspoon rosemary, 1 tablespoon thyme, 1/2 teaspoon sage, 1 tablespoon parsley, 1/4 teaspoon salt, and a pinch of pepper; set aside.
Cook bacon in a 4- to 5-quart Dutch oven over medium heat until browned and crisp, 5 to 7 minutes. Transfer to paper towels to drain.
Brown chicken all over in fat in pot, about 6 minutes total. Transfer with a slotted spoon to a plate. Cook sausage in pot, stirring occasionally, until browned, about 5 minutes. Transfer to plate.
Add garlic and onion to pot; cook stirring, until softened, about 3 minutes. Add wine, and deglaze pot by scraping up any brown bits from bottom with a wooden spoon; cook until most of the liquid has evaporated, about 2 minutes.
Stir in chicken, sausage, beans, tomatoes, and stock; the remaining teaspoon each rosemary and thyme; the remaining 1/2 teaspoon sage and 2 tablespoons parsley; and 1/2 teaspoon salt and 1/4 teaspoon pepper. Sprinkle breadcrumbs on top; pat down with a wooden spoon.
Cover pot; transfer to oven. Bake until bubbling, about 20 minutes. Uncover; bake until golden brown, about 15 minutes more. Crumble reserved bacon on top. Let cool slightly before serving.