Prep the Vegetables: Preheat oven to 450°F. Place cut vegetables in a large zip-top bag. Add olive oil, salt, garlic powder, and pepper. Seal and shake to coat. Spread evenly on a large baking sheet and roast for 15 minutes.
Make the Glaze: While vegetables are roasting, whisk olive oil, maple syrup, mustard, poultry seasoning, and garlic in a small bowl.
Prep the Salmon: If using frozen King Salmon, rinse under cold water to remove any ice glaze. Pat dry. Coat fillets with the mustard-maple mixture.
Combine & Roast: Remove vegetables from oven, flip with a spatula, and make space for salmon. Add salmon fillets to sheet and return to oven. Roast for 15 minutes if frozen, or 10–12 minutes if fresh/thawed, until salmon is opaque throughout.
Serve: Plate each portion with roasted vegetables and a salmon fillet. Enjoy immediately.
🔪 Pro Tip: This glaze works great on halibut or black cod too. For a smoky twist, try grilling the salmon instead of roasting.