The video shows this recipe prepared with cooking the onions and peppers separately from the mushrooms.  I am allergic to mushrooms and so it is a no go for me on mushrooms.  But Mushrooms have so much medicinal benefits eating them may provide protection from cancer, diabetes and help your heart.  I wouldn't want my family to miss out on those so I dirty another pan- that my kids then have to wash.  Overall this meal is a really great way to eat a lot of servings of vegetables and it tastes great!