Peel and cube the sweet potato, then boil in a pot of water until fork-tender.
Steam the green beans in a separate basket until they are bright green and crisp-tender.
Pat the salmon fillet completely dry with a paper towel and season with sea salt and black pepper.
Heat the ghee in a skillet over medium-high heat until shimmering.
Place the salmon in the skillet skin-side down and sear for 4 to 5 minutes until the skin is crispy.
Carefully flip the salmon and cook for an additional 2 to 3 minutes until the fish is opaque and flakes easily.
Remove the salmon from the pan and set aside to rest.
Add the minced garlic and steamed green beans to the same skillet, sautéing for 1 minute to infuse the flavors.
Drain the sweet potatoes and mash them until smooth, using a tablespoon of cooking water if needed for texture.
Plate the salmon over the sweet potato mash and serve alongside the garlic green beans with a fresh squeeze of lemon juice.