How to Make It
Preheat oven to 350ºF. Grease a 9-by-13-inch baking dish. In a large saucepan, melt butter with oil over medium heat. Add sausage, onion, celery and bell peppers and cook, stirring often, until vegetables are soft, about 10 minutes. Stir in herbs and Cajun seasoning. Transfer to a large bowl.
Add stuffing mix and broth to bowl and stir until well combined. Taste and season with salt and pepper, if desired. Spread in baking dish and dot with butter. Cover with foil and bake for 25 minutes. Remove foil and bake until hot, crisp and golden, about 25 minutes longer.