Pat the salmon fillet dry with a paper towel and season both sides with sea salt and black pepper.
In a small blender, combine the fresh mango, coconut milk, lime juice, grated ginger, and minced garlic, processing until the mixture is completely smooth.
Heat the avocado oil in a non-stick skillet over medium-high heat until shimmering.
Place the salmon in the pan skin-side up and sear for 4 to 5 minutes until a golden crust forms, then flip and cook for another 3 to 4 minutes until the internal temperature reaches 145 degrees Fahrenheit.
While the salmon cooks, steam the asparagus spears for 3 to 5 minutes until they are tender yet remain bright green and crisp.
Transfer the mango sauce to a small saucepan and warm over low heat for 2 minutes, being careful not to let it boil.
Plate the steamed asparagus, top with the pan-seared salmon, and generously drizzle with the warm mango sauce.
Garnish with chopped cilantro before serving.