Peel and cube the sweet potato. Place in a saucepan with water, bring to a boil, and simmer until tender, about 15-20 minutes.
Drain the sweet potato and mash until smooth. Set aside.
Trim the ends off the green beans and blanch them in boiling water for 3-4 minutes until bright green but still crisp. Drain and set aside.
Pat the salmon dry with a paper towel. Season both sides with a pinch of salt and black pepper.
Heat olive oil in a skillet over medium-high heat. Add the salmon, skin-side down if applicable, and sear for about 4-5 minutes until golden and crisp.
Flip the salmon carefully and add the minced garlic to the pan. Cook the other side for an additional 3-4 minutes until the salmon is cooked to your desired doneness and garlic is fragrant.
In a separate pan, quickly sauté the blanched green beans with a splash of olive oil, a pinch of salt, and the remaining garlic if desired for an extra punch of flavor.
Plate the sweet potato mash as the base, top with the seared salmon, and arrange the garlic green beans on the side.
Garnish with a light sprinkling of black pepper and enjoy your balanced, flavorful dinner.