This is the holiday dish to make for all your vegetarian friends! Hearty, delicious - and easy. Make our Vegetarian Gravy, too!
Preheat oven to 275°F (135°C). Line a rimmed sheet pan with parchment paper; set aside. Coat the inside of a 3-quart (2.8 L) casserole dish with nonstick spray; set aside.
Scrape mixture into a large mixing bowl and fold in squash, chestnuts, grapes and parsley. When bread is toasted, add to bowl and fold everything together very well. Add enough vegetable broth to evenly moisten the stuffing. It should be a tad moist and not dry at all at this point. Season with salt and pepper, if needed.