Preheat your oven to 400 degrees F.
Make sure your cooking space is prepared, including a hot ovenproof skillet ready to use.
Season each salmon fillet on both sides with salt and pepper.
This step ensures that the salmon will be flavorful throughout.
Spread Dijon mustard generously over the flesh side of each fillet.
Using mustard will add a tangy kick that pairs well with salmon.
Press the chopped fresh herbs onto the mustard-coated side of each fillet.
Make sure the herbs stick well to create a fresh, herby crust.
Heat olive oil in an ovenproof skillet over high heat until it's almost smoking.
Carefully place the salmon fillets, flesh-side down, in the skillet.
Sear the salmon for about 2-3 minutes until the herbs form a nice crust.
Flip the salmon fillets so the skin side is down.
Transfer the skillet to the preheated oven.
Bake for 5-7 minutes, depending on the thickness of your fillets.
Remove the skillet from the oven and let the salmon rest for a few minutes before serving.