Tilapia and Summer Vegetable Grill Packets

Bahan-bahan (4 porsi)

• 1½ cups sliced summer squash
• 1 cup halved grape tomatoes
• ½ cup thinly sliced red onion
• 12 whole green beans, (trimmed and cut in half)
• 2 tablespoons freshly squeezed lemon juice
• 1 tablespoon chopped fresh oregano
• 1 tablespoon extra-virgin olive oil
• ½ teaspoon salt, (divided)
• ½ teaspoon freshly ground black pepper, (divided)
• 1 pound tilapia fillets, (cut into 4 equal portions)
• 1 teaspoon capers
• ¼ cup sliced black olives ((optional))