Preheat your oven to 425 degrees F and line a baking sheet with greased foil or parchment.
Lay the salmon fillets skin side down. Brush the tops with olive oil, drizzle with fresh lemon juice, and season with salt and pepper to your liking.
Slide the salmon into the oven and bake for 8 to 10 minutes per inch of thickness. Then, for a crispy finish, broil for an extra 2 to 3 minutes. The salmon is ready when it flakes easily with a fork and reaches an internal temperature of 145 degrees F.
While the salmon is in the oven, whip up the chimichurri sauce by blending all the ingredients until they're nicely chopped.
Once the salmon is done, let it rest for 5 minutes. Then, top each fillet with about 2 tablespoons of the fresh chimichurri sauce. Serve up this zesty dish and watch it disappear!