Steam the cauliflower florets until they are very tender, approximately 8 to 10 minutes.
Pat the salmon fillet dry with a paper towel and season both sides with a pinch of sea salt and black pepper.
Heat a non-stick skillet over medium-high heat and add half of the ghee.
Place the salmon in the skillet skin-side down and sear for 4 to 5 minutes until the skin is golden and crisp.
Carefully flip the salmon and cook for an additional 2 to 3 minutes until the fish is cooked through but still moist.
Remove the salmon from the pan and set it aside to rest.
In the same skillet, add the remaining ghee, minced garlic, and green beans, sautéing for 5 minutes with a tablespoon of water until tender-crisp.
While the beans cook, mash the steamed cauliflower using a blender or food processor until it reaches a smooth, creamy consistency.
Plate the cauliflower mash, top with the seared salmon, and serve the garlic green beans on the side with a fresh lemon wedge.