Pat the salmon fillet completely dry with a paper towel to ensure the skin gets incredibly crispy, then season both sides with sea salt and black pepper.
Heat the avocado oil in a medium stainless steel or cast-iron skillet over medium-high heat until the oil is shimmering but not smoking.
Carefully place the salmon in the pan skin-side down, pressing gently with a spatula for 10 seconds to prevent curling, and sear for 4-5 minutes.
Flip the fillet once the skin is golden and releases easily from the pan, then cook for an additional 2-3 minutes until the salmon is just cooked through.
Remove the salmon from the pan and let it rest on a plate while you quickly toss the broccoli florets and sliced bell peppers into the same hot skillet.
Add the minced ginger and garlic to the vegetables, stir-frying for 3 minutes until the broccoli is tender-crisp and the aromatics are fragrant.
Deglaze the pan by pouring in the coconut aminos, stirring constantly to coat every vegetable in the zesty, savory sauce.
Plate the stir-fry veggies as a generous base, top with the golden salmon fillet, and finish with a sprinkle of toasted sesame seeds.