In medium bowl, whisk together egg substitute, milk, oregano, garlic powder, salt and pepper.
In small nonstick skillet coated with cooking spray, cook bell pepper, broccoli and veggie breakfast sausage links over medium heat until vegetables are tender.
Remove from skillet. Set aside.
In same skillet, cook egg mixture over medium-low heat until set. Top with vegetable mixture and mushrooms. Sprinkle with cheese. Tightly cover. Let stand for 3-5 minutes or until cheese melts.