Heat an outdoor grill or stovetop griddle over medium heat. Spray with non-stick spray and add zucchini slices and onion to the pan. Top veggies with a dash of salt, pepper and oregano. Cook until grill marks appear on both sides (approx. 4 minutes per side). Remove veggies and add wraps to the pan to warm (working in batches if needed). Flip wraps and cook until warmed through.
To assemble wraps, spread 2 tbsp. of hummus down the middle of each wrap. Next, evenly distribute and layer zucchini, onions, tomato, carrots, spinach, sprouts and pepperoncini peppers among each wrap. Spoon red wine vinegar over the top.