Begin by preheating your oven to 375°F (190°C) to create the perfect baking environment.
Prepare two large sheets of aluminum foil, each measuring about 12 inches in length, laying them out on a clean surface.
In a mixing bowl, combine the olive oil, minced garlic, lemon juice, dried oregano, dried thyme, and a generous pinch of salt and pepper. Whisk until well blended to create a flavorful marinade.
Center each salmon fillet on its respective foil sheet, ensuring you have enough space to fold the foil later.
Artfully arrange the slices of zucchini, bell pepper, and red onion around the salmon, distributing the vegetables evenly across both packets for balanced flavors.
With a steady hand, drizzle the prepared olive oil mixture over the salmon and vegetables, ensuring everything is well-coated for maximum flavor.
Carefully fold the edges of the foil over the salmon and vegetables, pressing to create a well-sealed packet. Be meticulous, making sure there are no openings for steam to escape, which is essential for even cooking.
Transfer the foil packets onto a baking sheet for easy handling. Slide them into the preheated oven and bake for 20-25 minutes, or until the salmon is opaque and flakes easily with a fork.
Once cooked, take the foil packs out of the oven with caution—open them slowly to let the steam escape safely. Finish with a sprinkle of fresh chopped parsley for a burst of color and freshness before serving.