Season & Sear: Season salmon fillets with salt and pepper. Heat olive oil in a large skillet over medium heat. Sear salmon skin-side up for about 4-5 minutes per side until golden and cooked through. Remove and set aside.
Make the Sauce: In the same pan, melt butter. Add garlic and shallot, sauté for 1-2 minutes until fragrant.
Deglaze & Simmer: Pour in broth, scraping up any bits from the pan. Let simmer for 2 minutes.
Add Cream & Cheese: Stir in heavy cream, Parmesan, Italian seasoning, and lemon juice. Simmer on low for 3-4 minutes until thickened.
Combine & Finish: Return salmon to the pan, spoon sauce over the fillets, and simmer for another 2-3 minutes.
Serve: Garnish with fresh herbs and serve with mashed potatoes, pasta, or steamed veggies.