In a small bowl, whisk together the olive oil, lemon juice, salt, pepper, garlic, and Italian seasoning until well combined
Clean and cut zucchini in spears, slices or circles
Add zucchini to rectangle pan or large bowl and toss with the olive oil mixture to coat
Heat grill to medium-high
Brush grates of grill with olive oil
Place zucchini on grill and cook 3-4 minutes per side or until tender
Remove from grill and place on serving plate
Sprinkle with salt, pepper, and parsley if desired
Serve with lemon wedges if desired