Place a rack in the middle of the oven; preheat the oven to 300°. Line a rimmed baking sheet with aluminum foil; lightly grease with extra-virgin olive oil. Place four salmon fillets, skin side down, on the prepared baking sheet.
Mix the zest of 1 lemon, 1 Tbsp. finely chopped thyme, and 1 Tbsp. extra-virgin olive oil in a small bowl. Spread the mixture over the salmon fillets.
Season with salt and pepper. Let sit at room temperature for 10 minutes to allow flavors to meld.
Bake salmon until just opaque in the center and has an internal temp of 145+ degrees, about 15–18 minutes.
Serve with lemon wedges for squeezing over, and enjoy!
