In a small bowl, combine crushed tomatoes with Italian seasoning. Mix well and set aside.
Spray a large microwave-safe mug with nonstick spray. Add egg substitute and cheese wedge, breaking the cheese wedge into pieces as you add it. Microwave for 1 minute. Gently stir. Microwave for another 30 seconds.
Add seasoned tomatoes and pepperoni to the mug. Mix well. Microwave for 30 seconds, or until scramble is just set.
Lightly stir, Sprinkle with grated Parmesan cheese. Allow to cool slightly.