Grab a mixing bowl and combine all the ingredients necessary for the salmon marinade, including butter, lemon juice, soy sauce, Worcestershire sauce, as well as all the seasonings and herbs listed.

Transfer the marinade to an airtight container and add the salmon pieces, making sure they're all coated evenly.

Let the salmon sit in this marinade in your fridge for at least 30 minutes, flipping the pieces a couple of times during the marinating period.

Combine all the listed ingredients for the homemade Texas Roadhouse tartar sauce in a small bowl.

Seal the bowl and let the sauce chill in the fridge until it's time to serve the salmon.

Take the salmon out of the fridge and drain the excess marinade.

Lightly grease the grill rack with cooking oil using a paper towel.

Preheat the grill to around 450°F before placing the salmon fillets skin-side down onto the rack.

Cover the grill and set it to moderate heat to prevent the fish from burning, grilling for about 8-10 minutes.

Plate the salmon and drizzle the tartar sauce on top or serve it as a dipping sauce on the side.