1. Heat a large frying pan over medium-high heat. Add oil, scallions, peppers, and zucchini, and season with salt. Sauté until vegetables are soft, about 10 minutes. Remove vegetables from pan and set aside.
2. Spray the same frying pan (make sure it is completely dry) with nonstick cooking spray. Place a wrap in the pan and cook for one minute. Place a fourth of the sautéed vegetables on top of the wrap and sprinkle on some shredded cheese. When the cheese starts to melt, top with a second wrap and gently push down. Cook for two minutes and flip over. Cook for one more minute.
3. Remove from pan and slice into wedges. Serve with some marinara sauce on the side as a dipping sauce.