Preheat the oven to 400 degrees. Line a baking sheet with foil, enough to wrap over the salmon, or at least to fold up the edges over the sides of the pan.
Peel the layer of skin off the bottom of the salmon by using a large knife. First cut a corner to separate the skin from the salmon, then hold down the skin with the knife sideways and peel the salmon back with your hand. Wash the salmon thoroughly, pat dry, cut into 1/2 inch thick pieces and place them on the foil.
In a bowl, mix together the lemon juice, minced garlic, and melted butter. Pour evenly over the salmon and sprinkle the sea salt, pepper, garlic powder, and red pepper flakes on top. Wrap the salmon in the foil or leave the edges folded up so that the juices stay inside.
Bake for about 15-17 minutes, depending on the thickness of the salmon slices.
Garnish with lemon slices and fresh dill, parsley, or cilantro. Serve with your favourite steamed vegetables, and enjoy!