Preheat the oven to 375 F.
Toss the smoked sausage, carrots, potatoes, onions into a large freezer bag.
Drizzle in the oil, the sprinkle in the seasoning salt, and herbs de provence .
Seal the bag, then shake to make sure that everything is coated with the oil, seasoning salt, and herbs.
Set the bag to the side the line a baking sheet with aluminum foil.
Empty out all of the ingredients from the freezer bag onto the baking sheet.
Spread everything out into a even layer.
Place in the oven, and leave uncovered.
Bake for 25-20 minutes.
Serve, and enjoy!
