Baked Salmon in Foil with Asparagus and Lemon Garlic Sauce
Description
This Baked Salmon in Foil with Asparagus and Lemon Garlic Sauce is an easy, flavourful one-pan dinner. Tender salmon fillets and crisp-tender asparagus are baked together in foil with a buttery lemon-garlic sauce, fresh herbs, and a touch of seasoning. The foil seals in moisture, leaving the salmon juicy and flaky while minimising cleanup.
Servings
4 servings
Prep Time
10 minutes
Cook Time
15–20 minutes
Total Time
25–30 minutes
Ingredients
For the Salmon & Asparagus
4 salmon fillets, about 5–6 oz (140–170 g) each
1 lb (450 g) fresh asparagus, woody ends trimmed
2 tbsp olive oil
1 tsp paprika
½ tsp Italian seasoning
½ tsp salt
¼ tsp black pepper
Lemon Garlic Sauce
4 tbsp unsalted butter, melted
4 cloves of garlic, finely minced
2 tbsp fresh lemon juice
1 tsp lemon zest
1 tbsp fresh parsley, chopped
½ tsp red pepper flakes, optional
½ tsp honey, optional, for a subtle balance of acidity
For Garnish
Lemon slices
Fresh parsley
Extra black pepper
Optional grated Parmesan
Instructions
Preheat the oven to 400°F (200°C).
Prepare the foil: Cut 4 large sheets of heavy-duty aluminium foil. Place them on a baking sheet.
Arrange the asparagus: Divide the asparagus evenly among the foil sheets, placing it in the centre.
Season the salmon: pat the salmon dry. Rub each fillet with olive oil, then season with paprika, Italian seasoning, salt, and black pepper. Place one fillet on top of each portion of asparagus.
Make the sauce: In a small bowl, combine melted butter, minced garlic, lemon juice, lemon zest, parsley, and red pepper flakes. Stir well.
Add the sauce: Spoon the lemon-garlic butter generously over each salmon fillet and asparagus.
Seal the packets: Bring the foil edges together and fold tightly to create sealed packets. Leave a little room inside for steam to circulate.
Bake: Place the packets in the oven and bake for 15–20 minutes, depending on the thickness of the salmon.
Check for doneness: the salmon should be opaque and flake easily with a fork. For food safety, salmon should reach an internal temperature of 145°F (63°C).
Open carefully: let the packets rest for 2–3 minutes before carefully opening—the steam will be very hot.
Finish and serve: Garnish with fresh parsley, lemon slices, and additional black pepper. Spoon the flavourful lemon-garlic juices from the foil over the salmon before serving.
Recipe Notes
Salmon: Skin-on or skinless salmon works. Choose fillets of similar thickness so they cook evenly.
Asparagus: Thin-to-medium asparagus cooks especially well with the salmon. Very thick stalks may need a few extra minutes.
Sauce: For a richer sauce, increase the butter slightly. For a lighter version, use additional olive oil instead.
Foil: Heavy-duty foil is preferable because it is less likely to tear when sealing the packets.
Don’t overcook: Salmon continues cooking slightly after coming out of the oven, so begin checking early.
Extra flavour: Add a small amount of Dijon mustard to the lemon-garlic sauce for a tangy variation.
Helpful Tips
For perfectly moist salmon: Avoid opening the foil packets repeatedly while baking. The trapped steam helps keep the fish tender.
For more browned salmon: open the packets during the final 2–3 minutes and switch to broil briefly. Watch carefully so the garlic doesn’t burn.
For meal prep: Store cooked salmon and asparagus in an airtight container in the refrigerator for up to 3 days.
For reheating: Gently reheat in a covered skillet or microwave. Avoid overheating, which can dry out the salmon.
Best flavour: Fresh lemon juice, fresh garlic, and fresh parsley make a noticeable difference compared with dried alternatives.
Nutritional Information
Approximate per serving, assuming 6-oz salmon fillets and the full recipe divided into four portions:
Calories: ~500 kcal
Protein: ~40 g
Fat: ~34 g
Saturated Fat: ~10 g
Carbohydrates: ~8 g
Fibre: ~3 g
Sugar: ~3 g
Sodium: ~500 mg
Omega-3 fatty acids: a rich source
Nutrition values are estimates and will vary according to the salmon size, butter, seasonings, and other ingredients used.
Benefits
High in protein: Salmon provides high-quality protein to support muscle maintenance and overall nutrition.
Rich in omega-3 fats: Salmon is an excellent source of EPA and DHA omega-3 fatty acids.
Vegetable-rich: Asparagus contributes fibre, folate, vitamin K, and antioxidants.
Lemon adds vitamin C: a fresh lemon contributes vitamin C and brightens the overall flavour.
Balanced meal: The combination of protein, vegetables, and healthy fats makes this a satisfying dinner without requiring a heavy side dish.
Simple preparation: baking everything together reduces dishes and makes this ideal for busy weeknights.
Frequently Asked Questions
Can I use frozen salmon?
Yes. For the best texture, thaw it completely in the refrigerator and pat it dry before seasoning.
Can I use another vegetable instead of asparagus?
Absolutely. Broccoli florets, green beans, zucchini, or thinly sliced bell peppers can work well. Adjust cooking time according to the vegetable.
Can I make this without butter?
Yes. Replace the butter with olive oil for a lighter dairy-free version.
Can I prepare the foil packets ahead of time?
You can assemble them several hours ahead and refrigerate them. Keep them chilled until you’re ready to bake.
How do I know when salmon is cooked?
The thickest part should reach 145°F (63°C) for food safety. The flesh should also appear opaque and flake easily.
Can I add Parmesan?
Yes. Sprinkle a small amount of Parmesan over the asparagus before sealing or add it after baking for extra savoury flavour.
What should I serve with baked salmon?
This pairs nicely with rice, roasted potatoes, quinoa, couscous, a green salad, or crusty bread to soak up the lemon-garlic sauce.
Can I make this recipe spicy?
Yes. Add red pepper flakes, cayenne pepper, or a little hot sauce to the lemon-garlic butter.
Why bake salmon in foil?
The sealed foil packet traps moisture and the aromatic lemon-garlic butter, helping the salmon cook gently and stay juicy while also making cleanup much easier.