Rustic French Cassoulet - A Simplified Version of the Classic Comfort Dish

Name: Rustic French Cassoulet - A Simplified Version of the Classic Comfort Dish
Cuisine: European, Mediterranean, French
Ingredients: 2 cans (15 oz each) great northern or cannellini beans, drained and rinsed; 1 large onion, diced; 2 carrots, diced; 2 celery stalks, diced; 4 garlic cloves, minced; 2 bay leaves; Fresh thyme sprigs; 4 chicken thighs, skin-on; 4 quality pork sausages (preferably garlic or toulouse-style); 4 slices thick-cut bacon, diced; Optional 1 duck leg confit; 1 cup fresh breadcrumbs; 2 tablespoons butter, melted; 1 tablespoon fresh parsley, chopped; Salt and pepper to taste; For the Liquid; 2 cups chicken stock; 1 cup white wine; 1 tablespoon tomato paste; Salt and pepper to taste; Optional Whole grain mustard on the side