Prep the salmon: Pat the fillets dry with paper towels.
Dry fish browns better and gets that lightly crisp top you want.
Preheat and pan/oven choice: For oven roasting, heat to 425°F (220°C) and line a sheet pan with parchment. For stovetop, heat a large nonstick or cast-iron skillet over medium-high.
Make the seasoning blend: In a small bowl, mix lemon pepper, salt, black pepper, garlic powder, and smoked paprika.
Oil and butter: Whisk olive oil, melted butter, lemon zest, and lemon juice. This becomes your flavorful coating.
Coat the salmon: Brush the top and sides of each fillet with the lemon-butter mixture.
Sprinkle the seasoning blend evenly over the fillets and press gently so it adheres.
Cook (oven method): Place salmon skin-side down on the lined pan. Roast 9–12 minutes, depending on thickness, until the center is just opaque and flakes easily. Aim for an internal temperature of 125–130°F for medium.
Cook (stovetop method): Add a light film of oil to the hot skillet.
Place salmon skin-side down and cook 4–6 minutes until the skin is crisp and the fish is mostly opaque. Flip and cook 1–2 minutes more. Spoon any leftover lemon-butter mixture over the top during the last minute.
Rest and finish: Let the salmon rest 2 minutes.
Garnish with chopped parsley and serve with lemon wedges for squeezing.
Serve: Great with roasted asparagus, sautéed green beans, a simple arugula salad, or cauliflower rice for a full low-carb plate.