Preheat the oven to 400°F.
Peel and dice the sweet potato into cubes. Toss with a pinch of salt and a small drizzle of olive oil, then spread evenly on a baking sheet.
Roast the sweet potato cubes in the preheated oven for about 20-25 minutes or until tender.
While the sweet potato roasts, chop the broccoli into bite-sized florets. Toss with a little olive oil, salt, and garlic powder.
Spread the broccoli on another baking sheet and roast in the oven for about 15-20 minutes until the edges are slightly crispy.
Season the salmon fillet with salt, pepper, and a dash of garlic powder.
Heat a non-stick skillet over medium-high heat and add the remaining olive oil. Place the salmon skin-side down and sear for about 3-4 minutes until beautifully crisp, then flip and cook for another 3-4 minutes until the salmon is just cooked through.
Once the sweet potato is roasted, transfer to a bowl and mash lightly until smooth but still chunky. Adjust seasoning as needed.
Plate the dish by placing a generous serving of sweet potato mash, topped with seared salmon and a side of roasted broccoli. Serve immediately.