Preheat your oven to 425°F.
Peel the sweet potato if desired and cut it into small cubes. Toss the sweet potato cubes with half the olive oil, a pinch of salt, and pepper.
Spread the sweet potato cubes on a baking tray and roast in the preheated oven for 20-25 minutes until tender and slightly caramelized.
While the sweet potatoes roast, prepare the asparagus by trimming the woody ends. Toss them with a little olive oil, salt, and pepper.
Heat a nonstick skillet over medium-high heat. Season the salmon fillet on both sides with salt and pepper.
Once the skillet is hot, add the salmon fillet and sear for about 3-4 minutes per side, or until a golden crust forms and the salmon is just cooked through.
In the last 5 minutes of the sweet potatoes roasting, add the seasoned asparagus to the baking tray to roast alongside.
Plate the seared salmon alongside the roasted sweet potatoes and asparagus, and serve immediately.