Chop the chicken into small pieces and toss in a bowl with the seasoning powder. Cut the bell pepper lengthwise into 1/4″ strips and thinly slice the onion lengthwise. Place vegetables into microwavable cookware with a steam basket and add water to the bottom of the dish, place your chicken and veggies in the basket, cover, and cook for 6 minutes or until the juices of the chicken run clear. No steam basket? Without water, place the veggies on the bottom of a glass container, cover with chicken, a lid, and microwave on high for 10 minutes.