Peel and dice the sweet potato into small, uniform cubes.
Place the sweet potato cubes in a pot of boiling water and cook for 10-12 minutes until fork-tender.
Steam the green beans for approximately 4 minutes until they are bright green and tender-crisp.
Pat the salmon fillet dry with a paper towel and season both sides with a pinch of salt and black pepper.
Heat one teaspoon of olive oil in a non-stick skillet over medium-high heat.
Place the salmon skin-side down in the pan and sear for 4-5 minutes until the skin is golden and crisp.
Flip the salmon and cook for another 3-4 minutes until the fish is opaque and flakes easily.
Remove the salmon from the pan and add the remaining half-teaspoon of oil along with the minced garlic.
Toss the steamed green beans in the garlic oil for 1 minute to infuse them with flavor.
Drain the sweet potatoes and mash them until smooth, adding a splash of hot water if needed for a creamy consistency.
Serve the seared salmon over the mashed sweet potato with the garlic green beans on the side and a fresh squeeze of lemon juice.