Pat the salmon fillet dry with a paper towel and season lightly with salt and black pepper.
Preheat a non-stick skillet over medium-high heat and add half the olive oil.
Place the salmon fillet skin-side down (if applicable) and sear for about 3-4 minutes per side until a golden crust forms and the center is just opaque.
While the salmon cooks, steam or boil the green beans until tender-crisp, about 4-5 minutes.
In a small pan, heat the remaining olive oil and gently sauté the minced garlic until fragrant, then toss the cooked green beans in the garlic oil to coat evenly.
Peel and dice the sweet potato. Boil until tender, approximately 10-12 minutes, then drain well.
Mash the sweet potato with a fork until smooth. Season with a pinch of salt and pepper to taste. Optionally, drizzle a tiny bit of olive oil for extra creaminess.
Plate the meal by spreading a portion of sweet potato mash, layering the garlic green beans on the side, and placing the seared salmon on top.
Serve immediately and enjoy your balanced, delicious dinner.