Vegetarian Cassoulet with Mushrooms and Chard

Name: Vegetarian Cassoulet with Mushrooms and Chard
Ingredients: 2 Tablespoons Olive Oil Or Unsalted Butter; 2 Medium Leeks, Halved And Thinly Sliced; 2 Celery Ribs, Finely Diced; 2 Medium Carrots, Peeled And Finely Diced; 2 cloves (Large) Garlic, Minced; 8 ounces, weight Cremini Or Baby Bello Mushrooms, Quartered; 1 bunch Red Chard, Thinly Sliced; 1 teaspoon Sea Salt; ½ cups Dry Red Wine; 2 cans (15 Oz. Size) Cannellini Or Great Northern Beans; 1-½ cup Vegetable Broth; 4 sprigs Thyme; ⅓ cups Gluten-free Breadcrumbs Or Nut Crumbs (see Note)