1.
For the Pineapple and Piquillo Pepper Salsa:
Prepare the salsa by combining all ingredients in a medium bowl; toss to combine and chill for at least 2 hours. Taste for seasonings and adjust accordingly.
2.
Cook: Oven
Preheat oven to 450F.
3.
Wash fish fillets and pat dry with paper towel. Brush each fillet with olive oil and season with salt and pepper.
4.
Set a grill pan or a cast-iron pan over medium-high heat. Place the salmon, skin-side up on the pan; cook for 5 minutes, or until lightly browned.
5.
Turn the salmon over, skin-side down, and transfer pan to the oven. Continue cooking for 5 to 7 minutes, or until done. Salmon is done when it starts to release the white substance or fat. Remove from oven and let stand 2 minutes and transfer to a plate.
6.
Spoon previously prepared salsa over fish.
8.
Cook: Grill
Heat a grill to medium-high and brush the cooking grate with oil.
9.
Season the salmon as directed in the recipe, and place the salmon, skin-side-down, on the grill and cover.
10.
Cook, undisturbed, until the salmon just starts to release its fat; about 10 to 15 minutes for most 1-inch-thick fillets. Remove the fish from grill and transfer to a plate.
11.
Spoon salsa over fish and serve.