Pat the salmon fillet dry with paper towels and season lightly with salt and pepper.
Heat a non-stick skillet over medium-high heat and add the olive oil.
Add the salmon to the skillet, skin side down if applicable, and sear for about 3-4 minutes until a crisp golden crust forms.
Flip the salmon and cook for an additional 3-4 minutes, or until the fish is cooked through but still moist in the center.
Meanwhile, steam or boil the green beans until just tender, approximately 4-5 minutes, then toss them in a small pan with a little olive oil and finely minced garlic for a minute to infuse the flavor.
For the sweet potato mash, peel and chop the sweet potato into cubes. Boil until tender, about 10-12 minutes, then drain.
Mash the sweet potato with a fork, add a pinch of salt and pepper, and a small drizzle of olive oil to enhance the creamy texture.
Plate the seared salmon alongside a generous serving of garlic green beans and a scoop of sweet potato mash. Garnish with a sprinkle of fresh herbs if desired and serve warm.