Pre-heat oven to 400F degrees.
Cut fish into four equal pieces. Set aside
In a small glass bowl whisk the olive oil, minced garlic, oregano, salt and pepper. Set aside
Cut 8 pieces of aluminum foil that is big enough to accomodate the fish and vegetable.
Place one piece of foil on the counter/ work surface. On the first layer add 5-6 asparagus spears. On top of the asparagus place 6 zucchini rounds. Place the fish on top of the zucchini. Top the fish with 2-3 cherry tomatoes, whole or halved.
Season each fish and vegetable packet with garlic oregano oil.
Top the fish with a second piece of foil. Fold both bottom and top foil pieces together tightly.
Place the fish packets on a sheet pan and bake for 18-20 minutes.
Carefully open fish packets away from your face, as it will release lots of hot steam.
Completely remove the top foil. You can either serve the fish in foil packets or slide the fish and vegetables onto a plate. Add a lemon slice and fresh cilantro to each packet