You will need 2 or 3 pieces (about 20 inches each) of aluminum foil based on how many filets you will be baking. I like to fold them once, to have a sturdier bottom.
Place the salmon fillets in the center or each prepared aluminum foil.
Top each salmon fillet with a drizzle of olive oil, use about 1 tablespoon.
Add minced garlic, salt, pepper and dried oregano, rub it gently into the salmon.
Add the capers onto the salmon, distribute evenly between the foil packets. Followed by grape tomatoes, olives, crushed garlic, lemon juice, butter, parsley and fresh oregano. Drizzle with the remaining olive oil.
Fold the packets and close them, covering the salmon fillets well.
Place packets on a baking pan and bake for 15-20 minutes or until salmon is cooked through and is flaky. You can also put the salmon packets onto a baking sheet.
Once time is up, carefully open the packets to release the steam and serve.