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5 from 7 votes
Baked salmon fillets with lemon slices.

Oven Baked Salmon and Asparagus with Garlic Lemon Butter Sauce

11 11 11
WW Freestyle: 5
Prep Time10 mins
Cook Time20 mins
This Oven Baked Salmon Recipe makes tender, flaky salmon in a delicious lemon garlic butter sauce. Roasted with asparagus spears, this low-carb dinner idea is packed with flavor and comes together in just one pan. 
Course: Dinner
Cuisine: American, Italian, Mediterranean
Servings: 4 serves
Calories: 378


  • 1 pound fresh asparagus, ends trimmed
  • cooking spray
  • salt and fresh ground pepper, to taste
  • 4 (6-ounces each) salmon fillets, skin-on or skin-off
  • 4 tablespoons butter, room temperature
  • 4 cloves garlic, minced
  • 1 lemon, juiced, juice divided
  • 1 tablespoon lemon zest
  • 1 tablespoon Low carb Keto-friendly Maple Syrup
  • 1/2 tablespoon chopped fresh rosemary, you can use less or more, and you can also use other fresh herbs - doesn't have to be rosemary
  • salt and fresh ground pepper, to taste
  • lemon slices, cut into half moons
  • fresh rosemary leaves, optional
  • fresh chopped parsley, for garnish


  • Preheat oven to 400˚F.
  • Lightly butter a 9x13 baking dish.
  • Layer asparagus in the baking dish; lightly coat asparagus with cooking spray, season with salt and pepper, and toss to combine.
  • Arrange salmon fillets over the asparagus and set aside.
  • In a small bowl combine butter, garlic, half of the lemon juice, lemon zest, maple syrup, rosemary, salt, and pepper; mash with a fork to create a paste.
  • Rub the salmon fillets all over with the paste.
  • Top each fillet with lemon slices and add few fresh rosemary leaves, if using.
  • Bake for 17 to 20 minutes, or until fish flakes easily and asparagus is fork tender. For a light crisp and browned top, I suggest to pop it under the broiler for the last 3 to 4 minutes. Watch it closely and do not overcook.
  • Squeeze some lemon juice over the salmon, add fresh parsley, and serve.


  • Cooking time will depend on the thickness of the fillets. Thicker salmon fillets will need extra time, while thinner ones will cook in around 16 to 17 minutes. 
  • Same rule for the asparagus; if it's thin asparagus, or thinner spears, it will cook up a lot faster than the salmon. Please try to use thicker spears so that everything cooks at the same time.
Nutrition Facts
Oven Baked Salmon and Asparagus with Garlic Lemon Butter Sauce
Amount Per Serving (10 ounces)
Calories 378 Calories from Fat 198
% Daily Value*
Fat 22g34%
Saturated Fat 9g45%
Cholesterol 124mg41%
Sodium 178mg7%
Potassium 1112mg32%
Carbohydrates 8g3%
Fiber 3g12%
Sugar 3g3%
Protein 37g74%
Vitamin A 1275IU26%
Vitamin C 24mg29%
Calcium 67mg7%
Iron 4mg22%
* Percent Daily Values are based on a 2000 calorie diet.
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