Preheat your oven to 400°F.
Peel and cube the sweet potato. Toss with a tablespoon of olive oil, half the minced garlic, salt, and pepper. Spread evenly on a baking sheet.
Roast the sweet potatoes in the preheated oven for about 25-30 minutes, until tender and slightly crispy on the edges.
While the potatoes roast, season the salmon fillet with salt and black pepper. Heat a non-stick skillet over medium-high heat.
Add the salmon, skin-side down if applicable, and sear for about 4 minutes. Flip and cook for another 3-4 minutes until the salmon is cooked through but still moist.
Meanwhile, steam the asparagus until just tender, about 3-4 minutes. Season lightly with salt and pepper.
Prepare the lemon-dill yogurt sauce by combining the nonfat Greek yogurt, remaining minced garlic, juice from half a lemon, and chopped fresh dill in a small bowl. Mix well and season with salt and pepper as needed.
Plate the seared salmon alongside a serving of roasted sweet potatoes and steamed asparagus. Drizzle the lemon-dill yogurt sauce over the salmon or serve on the side.
Enjoy your balanced and nutritious dinner!