01 - Pat salmon fillets thoroughly dry with paper towels. Season both sides generously with kosher salt and freshly ground black pepper.
02 - Heat olive oil in a large, deep skillet over medium-high heat until shimmering. Place salmon fillets skin-side down and sear for 3–4 minutes until skin is golden and crispy. Flip carefully and cook 1–2 minutes more. Transfer salmon to a plate to rest.
03 - In the same skillet, add chopped onion and cook for 2–3 minutes, scraping up any browned bits from the bottom. Add minced garlic, dried oregano, and chili flakes; sauté for 1 minute until fragrant.
04 - Stir orzo pasta into the skillet and toast for 1–2 minutes, stirring frequently until lightly golden and fragrant.
05 - Pour in white wine and let simmer for 1 minute until slightly reduced. Add broth, lemon zest, and lemon juice. Stir well to combine and bring to a gentle boil.
06 - Reduce heat to medium-low. Cover skillet and cook orzo for 8–10 minutes, stirring occasionally to prevent sticking, until just tender and most liquid is absorbed.
07 - Nestle salmon fillets skin-side down on top of the orzo. Cover and cook for 3–5 minutes, until salmon is cooked through and flakes easily with a fork.
08 - Remove skillet from heat. Stir in unsalted butter and grated Parmesan until melted and creamy. Sprinkle chopped fresh parsley over the top. Serve immediately with extra lemon wedges on the side.