Preheat your oven to 425°F (220°C) to roast the sweet potato.
Wash the sweet potato thoroughly, then dice it into 1-inch cubes. Toss the cubes with 1 tablespoon of olive oil, a pinch of salt, and pepper. Spread them evenly on a baking sheet.
Roast the sweet potato cubes in the preheated oven for 25-30 minutes, or until they are tender and slightly caramelized, stirring halfway through.
While the sweet potatoes are roasting, pat the salmon fillet dry. Season both sides with salt, pepper, and garlic powder.
Heat a non-stick skillet over medium-high heat. Once hot, sear the salmon fillet skin-side down (if applicable) for about 4 minutes until a golden crust forms.
Flip the salmon and cook for an additional 3-4 minutes or until it reaches your preferred level of doneness.
Meanwhile, in another pan, add 1 teaspoon of olive oil and gently sauté the fresh spinach over medium heat for 1-2 minutes just until it begins to wilt, retaining its vibrant green color.
Plate the roasted sweet potato cubes and place the seared salmon fillet on top. Add the wilted spinach on the side.
Serve immediately and enjoy your balanced, nutritious dinner.