This recipe is a healthy and flavorful way to enjoy halibut. The halibut is seasoned with salt and pepper, then baked in the oven until cooked through. The roasted vegetables are made by tossing diced sweet potatoes, Brussels sprouts, and red onion with olive oil, salt, and pepper, then roasting in the oven until tender. The halibut is then served with the roasted vegetables on the side. It's a delicious and satisfying meal that's perfect for a fall dinner.