In a large skillet, heat the oil over medium-high heat.
Add the chicken cubes and sauté for 2 minutes. Remove the chicken from the skillet and set aside.
Add the onion, stir it around for a minute or 2 and then add the squash and red pepper.
Give the veggies a good stir and then add the cumin, salt, and pepper and sauté for 4 to 6 minutes.
Add in the corn, parsley, and return chicken to pan and sauté for 4 minutes. Serve warm.