Preheat the oven to 375 degrees F.
Whisk together the olive oil, lemon zest, lemon juice, salt, and pepper in a small bowl.
Pat dry the salmon fillet on both sides using a few sheets of paper towel. Brush both sides of the salmon with the olive oil-lemon mixture.
Line a baking sheet with a large sheet of aluminum foil that is 4 inches longer than your salmon fillet. Place the salmon skin side down in the middle leaving 2 inches on both sides.
Distribute the garlic slices and lemon slices on top of the fillets.
Bring the excess foil on both long sides of the fish towards the middle and cinch loosely. Fold the end pieces of the aluminum foil onto the fish and seal it loosely.
Transfer it to the preheated oven and Bake for 10 minutes without opening the packet of salmon. When cooking time is complete, you can carefully open the foil packet and check doneness. If you have an instant read thermometer, insert it into the thickest part of the fish, if it registers 125 degrees F, it is ready to be served.
Remove from the oven, carefully open the foil. Sprinkle it with chopped parsley and/or dill.
If preferred, cut into slices, garnish with lemon slices and chopped fresh herbs, and serve.