Today's guest post is edible--Sheri Castle's recipe for Italian sausage and tortellini soup! It's the perfect warm, hearty dish for these chilly months. This is the first in a monthly series of posts in which the author will share delicious, healthy recipes that utilize fresh, local ingredients from her new book, The New Southern Garden Cookbook: Recipes for Enjoying the Best from Homegrown Gardens, Farmers' Markets, Roadside Stands and CSA Farm Boxes. -Alex I have made untold gallons of this thick and hearty soup over the years. It is one of those rare and precious...