Wash and prepare your zucchini (do not peel it). Cut your zucchini either into 1/4 inch thick rounds, or cut the entire zucchini into halves or thirds (depending on how large it is). Take these portions and slice them into 1/4 inch thick pieces. Place in a large bowl and set aside.
1 large or 2 medium sized zucchini
In a small bowl whisk together the remaining ingredients. When well combined, pour over the zucchini. Using your hands, gently toss the zucchini in the marinade to ensure that all pieces get coated well, on both sides. Allow the zucchini to marinate for at least 30 minutes, or several hours.
1/4 cup Greek olive oil, 1 ½ tbsp balsamic vinegar, 1/2 teaspoon salt, 1 teaspoon Italian seasoning, 1/2 teaspoon dried Greek oregano
Prepare your grill. Place your zucchini over medium heat and cook for approximately 5 minutes per side. Reserve any marinade remaining in the bowl.
The cooking time will depend upon several things, including the level of heat, the exact thickness of your zucchini, and how you prefer to eat the grilled veggies. When the zucchini is done to your liking, remove from heat. If you like, pour some of the leftover marinade over the grilled zucchini.
Enjoy!