Pat and season the salmon: Dry the fillets well. Season both sides with salt, pepper, and a light sprinkle of Italian seasoning.
Pan-sear the salmon: Heat olive oil in a large skillet over medium-high.
Sear salmon 3–4 minutes per side until golden and just cooked through. Remove to a plate.
Sauté aromatics: Lower heat to medium. Add butter, then garlic.
Cook 30 seconds until fragrant. Stir in sun-dried tomatoes for another minute.
Build the sauce: Pour in broth to deglaze, scraping up browned bits. Add heavy cream and a pinch of red pepper flakes.
Simmer gently 2–3 minutes.
Melt in Parmesan: Stir in Parmesan until smooth. If it’s too thick, add a splash of broth. If too thin, simmer another minute.
Add greens and brightener: Toss in spinach and let it wilt.
Stir in lemon juice and adjust salt and pepper.
Finish with salmon: Nestle salmon back into the pan and spoon sauce over the top. Warm for 1–2 minutes.
Garnish and serve: Top with fresh basil or parsley. Serve with sautéed zucchini, roasted asparagus, or cauliflower mash.