Breads with stalks

1 lb loaf sourdough bread 8 tablespoons butter 10 ounces cremini mushrooms , sliced 1/2-inch thick in both directions (optional) salt & freshly ground black[...]

2 cups bulk pork sausage 6 tablespoons unsalted butter 1 large onion , finely chopped 1 stalk celery , finely chopped 1 granny smith apple , peeled cored and[...]