Preheat your oven to 400°F.
Peel (if desired) and cube the sweet potato into bite-sized pieces. Toss with 1 tsp olive oil, salt, and pepper. Spread evenly on a baking sheet.
Trim the asparagus by snapping off the woody ends. Toss with a drizzle of olive oil, salt, and pepper, and place on the baking sheet with the sweet potato.
Roast the sweet potato and asparagus in the oven for about 20-25 minutes, until tender and slightly caramelized.
While the vegetables roast, heat a non-stick skillet over medium-high heat. Season the salmon fillet with salt and pepper.
Add 1 tsp olive oil to the skillet and sear the salmon, skin side down first if applicable, about 4-5 minutes per side or until cooked to your desired doneness.
In a small bowl, whisk together the egg whites, grated ginger, minced garlic, and low-sodium soy sauce to create a light hibachi sauce.
Lightly warm the hibachi sauce in a small pan over low heat (do not scramble the egg whites; just warm until combined) for about 1-2 minutes.
Plate the seared salmon alongside the roasted sweet potato and asparagus, then drizzle the warm hibachi sauce over the salmon.
Serve immediately and enjoy your balanced, flavorful dinner.