01 - In a small bowl, whisk together the olive oil, lemon zest, lemon juice, minced garlic, smoked paprika, salt, black pepper, and dried dill until well combined.
02 - Pat the salmon fillets thoroughly dry with paper towels. Brush both sides generously with the marinade, reserving 1 tablespoon of the mixture for the asparagus.
03 - Place the trimmed asparagus spears in a bowl and toss them with the reserved tablespoon of marinade until evenly coated.
04 - Preheat the air fryer to 400°F for 3 minutes.
05 - Place the salmon fillets in the air fryer basket skin-side down, leaving space between them. Arrange the asparagus spears around the salmon.
06 - Cook for 10 to 12 minutes, or until the salmon is cooked through (internal temperature 125°F–130°F) and the asparagus is tender and lightly crisped.
07 - Transfer to a serving plate and serve immediately with lemon wedges and optional fresh herbs.