Italian Sausage Stuffed Portobello Mushrooms with Herb Parmesan Cream Sauce al la Olive Garden Ingredients: Stuffing: 2 large portobello mushrooms, stems & gills removed 1/2 pound sweet Italian sausage (I used hot Italian sausage) 1 teaspoon fresh Italian parsley, chopped 1 teaspoon fresh basil, chopped 1 clove garlic, chopped 1/2 cup garlic croutons, finely