Line a rimmed baking sheet with aluminum foil and spray with cooking spray.
Lay sweet potatoes and broccoli on pan and drizzle with 2 tablespoons of olive oil.
Season with salt and pepper to taste and toss.
Roast in the oven for 10-15 minutes. Sweet potatoes should be tender.
While sweet potatoes and broccoli are roasting, prepare salmon glaze. In a small bowl, whisk together honey, spicy brown mustard, ¼ teaspoon salt, and ¼ teaspoon pepper.
Remove vegetables from oven and stir. Turn oven setting to BROIL on “high.”
Move broccoli and sweet potatoes to the edges of the sheet pan to make room in the center for the salmon.
Place salmon in center of tray, leaving space in between each fillet so that they cook evenly. Brush glaze on top of each piece of salmon.
Broil for 8-10 minutes (depending on size and thickness of the filets), or until salmon flakes easily with a fork. The top of the filets should be browned and crispy. Sweet potatoes and broccoli should be fully roasted and tender.