Preheat the oven to 350 degrees. Spread pecans in a single layer on a rimmed baking sheet; toast in oven until golden and fragrant, 8 to 12 minutes, tossing occasionally. Let cool, then roughly chop; set aside.
Melt butter in a large skillet. Add onions and celery; cook over medium heat, stirring occasionally, until onions are translucent, about 10 minutes. Add oregano; stir to combine.ne.
Transfer onion mixture to a large bowl. Add pecans, cornbread, bread cubes, eggs, cranberries, parsley, salt, black pepper, cayenne, Seasoning, and stock, mix to combine. Cook stuffing in a turkey or baking dish. If using a baking dish, generously coat dish with butter, fill with stuffing, and dot stuffing with additional butter. Cover with parchment paper-lined aluminum foil, and bake at 375 degrees for 35 minutes. Remove foil, and bake an additional 20 minutes.