- 2 yellow squash, cut into 1/2-inch slices
- 2 zucchini, cut into 1/2-inch slices
- 2 tomatoes, cut into wedges (optional)
- 1 small onion, sliced and separated into rings
- 2 cloves garlic, minced
- 2 tablespoons olive oil
- salt and pepper to taste
- 2 tablespoons chopped fresh parsley (optional)
- Preheat an outdoor grill to medium heat. Cut two sheets of heavy duty aluminum foil, each approximately 18 inches long.
- Place the yellow squash, zucchini, tomatoes, onion, and garlic in the center of one sheet of aluminum foil. Drizzle with olive oil; season with salt and pepper. Place second sheet of foil on top of vegetables. Fold edges together tightly to seal packet.
- Place packet on the top rack of the preheated grill. Cook for 15 minutes. Turn packet over and continue to cook until vegetables are tender, 15 to 20 minutes.
- Carefully cut an “X” into top of packet and pour vegetables and juices into serving bowl. Garnish with parsley.