Not just for Thanksgiving, people. And if "snack" appeals to you but "project" does not, forget about the pretty piping and just spoon the filling right in. Recipe: Twice-Baked Sweet Potato Boats with Toasted Marshmallows A hollowed-out pumpkin gets filled with stock and cheese and roasted, then served whole and split into individual serving bowls, where you'll ladle on more stock to make a soup.