Preheat oven to 400 degrees.
Place the garlic, herbs, salt and pepper in the bowl of a mini-food processor and process until the herbs are finely chopped. Add the olive oil and process until well combined. Add lemon zest and pulse once or twice.
Place each piece of fish in the center of a sheet of parchment. Spread a heaping spoonful of the herb mixture on top of each piece of fish.
Bring 2 opposite sides of the parchment together and fold. Continue to fold all the way down until you reach the fish. Twist both ends of the parchment so that it looks like a hard candy wrapper. Place each packet on a baking sheet and bake for 12-15 minutes based on the thickness of the fish.
Transfer each packet to a plate and use caution when opening – the steam will be very hot!