Preheat oven to 375°F and line a large, rimmed baking sheet with a piece of parchment paper or silicone baking mat.
Place salmon fillets on the prepared baking sheet and generously season with salt and black pepper, to taste. Set aside.
4 6 ounce salmon fillets, salt and black pepper
In a small bowl, whisk together olive oil and lemon juice. Add the mustard, honey, and garlic and whisk to combine. Brush each fillet with the honey-mustard mixture until coated.