Lay bread cubes on 2 large baking sheets and set aside for 1-2 days. Gently toss after 12 hours to ensure even drying.
Combine everything. Honestly that’s it. Just throw all the ingredients into a large mixing bowl, and be sure it’s thoroughly incorporated.
Preheat the oven to 350 degrees. Place stuffing in a lightly greased ovenproof dish and bake in the oven for 30-40 minutes, or until the bread is soft and the veggies are cooked. It is good if the vegetables still have a little crunch.