Using bread cubes that you have saved and frozen, dry in a 200 degree oven until crisp. If you are purchasing breadcrumbs (my bakery sells them bagged), just skip this step.
In a large non-stick skillet, add the vegan margarine (or broth) and the diced veggies. Saute until tender. You don't want crunchy vegetables in your final product.
Preheat the oven to 350 degrees and prepare a baking dish with cooking spray.
Warm broth on the stove in a small pan.
Add the vegetables, parsley and seasonings to the bread cubes in a large bowl. Gradually add the warm broth just until all of the bread cubes are coated and moist. You don't want them overly wet.
Bake covered with foil for about 20 minutes. Remove foil and bake until the moisture has evaporated and you have some browned, crisp edges.