01 -
Set the oven temperature to 232°C (450°F) and allow it to preheat fully.
02 -
Cut 4 pieces of aluminium foil, each measuring 30 cm in length. Distribute one quarter of the asparagus and sliced onion onto each piece of foil.
03 -
Place a salmon fillet atop each bed of vegetables. Drizzle 1 tablespoon olive oil over each, and season generously with salt and black pepper.
04 -
Add approximately three lemon slices over each salmon fillet and top with a fresh dill sprig.
05 -
Bring the long sides of the foil together over the salmon and fold to seal. Fold in the short ends tightly. Arrange packets seam-side up on a baking tray and place in the oven.
06 -
Bake for 15 to 18 minutes until the salmon is just opaque and flakes easily with a fork.
07 -
Carefully open the foil packets to avoid steam. Serve immediately, optionally with cooked rice.