Creamy Rigatoni Florentine with Sauteed Mushrooms and Toasted Walnuts is a rich and satisfying pasta dish that incorporates the warm, earthy flavors of fall. Served as a vegetarian meal, or as a side dish, this recipe is savory, healthy and delicious. Creamy Rigatoni Florentine With Sauteed Mushrooms and Toasted Walnuts Author: Christine Coughlan Ingredients 1