Check the salmon for any hidden bones and pull them out with a pair of kitchen tweezers.
Place the filet skin side down on an oiled grill rack.
Set up your grill for direct heat.
Place the herbs and garlic in a food processor and run until finely chopped.
Add the lemon juice and pulse briefly. With the machine running, drizzle in the olive oil and process until you get a paste.
Use a spatula or your fingers to spread the herb mixture over the salmon.
Grill until the flesh is firm and opaque, between 5 and 10 minutes depending on thickness; it should reach 145°F on an instant read thermometer.