Preheat your oven to 400°F.
Peel (if desired) and cube the sweet potato. Toss with a drizzle of olive oil, salt, and pepper, then spread on a baking sheet.
Roast the sweet potato in the preheated oven for 20-25 minutes or until tender and lightly caramelized.
While the sweet potato is roasting, trim the ends of the green beans. Toss them in a small amount of olive oil, salt, and pepper and set aside.
Heat a non-stick skillet over medium-high heat. Pat the salmon dry and season both sides generously with salt and pepper.
Add a drizzle of olive oil to the skillet and sear the salmon skin side down first (if applicable) for about 3-4 minutes until a golden crust forms.
Flip the salmon and cook for another 3-4 minutes, or until the salmon reaches your desired doneness.
In the last 5 minutes of the sweet potato roasting, add the green beans to the oven on a separate tray or with the sweet potato if space allows.
Once everything is cooked, plate the salmon, add the roasted sweet potato and green beans, and serve immediately.