Preheat oven to 400°.
Heat a large nonstick skillet over medium heat. Coat pan with cooking spray. Add onion, pancetta, and garlic; cook 8 minutes or until onion is tender and pancetta is browned, stirring frequently. Stir in wine; cook until liquid evaporates, scraping pan to loosen browned bits. Remove from heat.
Add cranberries, chestnuts, sage, salt, and pepper to pancetta mixture; stir until combined. Combine pancetta mixture and bread in a large bowl. Pour broth over bread mixture; toss to combine. Spoon into an 11 x 7-inch baking dish coated with cooking spray.
Bake at 400° for 30 minutes or until golden brown.