01 - Pat salmon fillets dry with paper towels. Season evenly with sea salt and black pepper.
02 - Combine olive oil, lemon zest and juice, orange zest and juice, Dijon mustard, and minced garlic in a small bowl. Whisk until well blended.
03 - In a separate bowl, mix the finely chopped nuts with fresh parsley.
04 - Brush the top of each salmon fillet with the citrus-mustard marinade. Press the nut mixture firmly onto the top of each fillet to form a crust.
05 - Heat a nonstick skillet over medium-high heat and add a splash of olive oil.
06 - Place salmon fillets, crust side down, in the skillet. Sear for 2–3 minutes until nuts turn golden and fragrant.
07 - Carefully flip fillets, reduce heat to medium, and cook for an additional 4–5 minutes until salmon is just cooked through and flakes easily with a fork.
08 - Remove salmon from skillet and let rest for 2 minutes. Garnish with fresh parsley, lemon wedges, and orange segments. Serve immediately.