Keto Lemon Butter Salmon Skillet

The keto lemon butter salmon skillet is a quick, one-pan dish featuring salmon fillets seared to a crisp, golden exterior while staying tender and juicy inside. A rich lemon butter sauce made with garlic, lemon zest, and fresh lemon juice coats the salmon, delivering a bright yet silky flavor that feels satisfying and restaurant-worthy. Finished with fresh parsley and simple seasoning, this low-carb, high-fat meal is perfectly balanced, keto-friendly, and ideal for busy weeknights.

Course Dinner, Main Course

Cuisine American

Keyword keto salmon, lemon butter salmon, low carb dinner, one skillet meal

Prep Time 10

Cook Time 15

Total Time 25

Servings servings

Calories 410kcal

Equipment

large skillet
Microplane or fine grater
Cutting board
Chef's knife
tongs or spatula

Ingredients

For the salmon

4 fillets salmon fillets, skin-on, about 6 ounces each
1 tablespoon olive oil
1 teaspoon fine sea salt divided
1/2 teaspoon freshly ground black pepper

For the lemon butter sauce

6 tablespoons unsalted butter cut into pieces
3 cloves garlic, minced
1 lemon, zested and juiced about 1 tablespoon zest and 3 tablespoons juice
1/4 teaspoon crushed red pepper flakes optional, for heat
2 tablespoons fresh parsley, finely chopped plus more for garnish
1 tablespoon water or additional lemon juice, to thin sauce if needed

Instructions

Pat the salmon fillets dry with paper towels and season both sides with most of the salt and all of the black pepper.
Heat the olive oil in a large skillet over medium to medium high heat until the oil shimmers.
Place the salmon fillets in the skillet skin side down and cook undisturbed until the skin is crisp and the flesh is mostly opaque, about 4 to 6 minutes depending on thickness.
Gently flip the salmon and cook until just cooked through and flakes easily with a fork, about 2 to 3 minutes more, then transfer the fillets to a plate and tent loosely with foil.
Reduce the heat to medium low, add the butter to the same skillet, and cook until melted and just starting to turn a light golden color around the edges.
Stir in the minced garlic and cook, stirring constantly, until fragrant and lightly sizzling, about 30 seconds, being careful not to brown the garlic.
Stir in the lemon zest, lemon juice, remaining salt, and red pepper flakes if using, and let the sauce simmer gently for about 1 minute to meld the flavors.
Whisk in the water or additional lemon juice a little at a time until the sauce is glossy and flows easily, then stir in the chopped parsley and remove the skillet from the heat.
Return the salmon to the skillet, spoon the lemon butter sauce generously over the fillets, and let the fish sit in the warm sauce for a minute to reheat gently.
Garnish the salmon with extra parsley and serve hot with any remaining lemon butter sauce spooned over the top.

Notes

For the best texture, avoid overcooking the salmon and remove it from the heat as soon as it flakes easily with a fork. Wild caught salmon tends to cook more quickly than farmed, so adjust the timing to match the thickness of your fillets. If you prefer a richer flavor, let the butter brown slightly before adding the garlic to create a deeper, nutty sauce, but watch closely to keep it from burning. This skillet meal pairs well with low carb sides like sautéed asparagus, roasted broccoli, or a simple green salad for a complete keto dinner. Leftovers keep well in the refrigerator for up to 3 days and are best reheated gently over low heat to preserve moisture and tenderness.

Nutrition