Thoroughly spray the ramekin with cooking spray. Add the egg whites or Egg Beaters to the ramekin, filling just about 2/3 full. Add the spinach and roasted red peppers, stirring to combine. Top with the Monterey Jack cheese. Place in the microwave with microwave-safe cover and cook for 1 minute. Check the doneness and flip the egg over in the ramekin and cook for an additional 30-40 seconds, or until the egg is set. Serve and enjoy!