Cut the peppers into strips, the purple onion into thin half or quarter rounds, and the mushrooms into slices. Spread the vegetables over the chicken. In a small bowl, mix the oil, soy sauce, brown ...

The founder of a Montessori-inspired children's cooking school shares her recipe for a vegetable stir-fry medley that "looks more appealing" and is fun to make, even for a 3-year-old.