Preheat your oven to 425°F.
Peel and cube the sweet potato into bite-sized pieces, then toss with a pinch of salt, pepper, garlic powder, and half of the olive oil.
Trim the ends of the green beans and toss them with a little salt, pepper, and the remaining olive oil.
Spread the sweet potato cubes on a baking sheet and roast in the oven for about 20 minutes.
After 10 minutes, add the green beans to the baking sheet and continue roasting both until the sweet potatoes are tender and green beans are crisp, about 10 more minutes.
While the vegetables are roasting, season the salmon fillet with salt, pepper, and garlic powder.
Heat a non-stick skillet over medium-high heat and sear the salmon, skin side down first, for about 3-4 minutes until the skin is crispy.
Flip the salmon and cook for an additional 2-3 minutes until the internal temperature reaches your desired doneness.
Plate the seared salmon alongside the roasted sweet potatoes and crispy green beans, and serve immediately.