1 cup Panko-style bread crumbs
6 ounces grated Parmesan cheese
1/4 cup chopped fresh parsley leaves
2 tablespoons finely minced fresh chives
2 small shallots, finely minced (about 1/2 cup)
2 medium cloves garlic, minced (about 2 teaspoons)
2 tablespoons extra-virgin olive oil
Kosher salt and freshly ground black pepper
2 tablespoons unsalted butter
8 ounces Italian sausage (mild or hot), removed from casings
1 pound mixed mushrooms (such as portobello, shiitake, and oyster), cleaned and thinly sliced
1 tablespoon soy sauce
1 tablespoon juice from 1 lemon
2 1/2 tablespoons all-purpose flour
2 cups homemade or store-bought low-sodium chicken stock
1 cup heavy cream
12 ounces fresh or 8 ounces dried ridged pasta such as rotini or campanelle