Cook the brown rice according to package instructions until tender and set aside.
Pat the salmon fillet completely dry with paper towels and season both sides with a pinch of sea salt and cracked black pepper.
Heat half of the olive oil in a non-stick skillet over medium-high heat until shimmering.
Place the salmon skin-side down in the pan and press gently with a spatula for 10 seconds to ensure even contact.
Sear the salmon for 4-5 minutes until the skin is golden and crispy, then flip and cook for another 2-3 minutes until opaque throughout.
Remove the salmon from the pan and let it rest on a plate.
In the same skillet, add the remaining olive oil and minced garlic, sautéing for 30 seconds until fragrant.
Add the fresh spinach to the pan and toss constantly until just wilted, about 1-2 minutes.
Plating the dish by placing the brown rice on the bottom, topping with the garlic spinach, and resting the salmon fillet on top.
Finish with a fresh squeeze of lemon juice over the entire dish before serving.