Cut the chicken into bite-sized pieces.
Slice sweet potato, cabbage, onion, and carrot into easy-to-eat sizes.
Lightly coat a pan with olive oil and stir-fry the chicken.
When the chicken starts to cook, add all the vegetables and stir-fry together.
Make the seasoning sauce with diet gochujang, soy sauce, and minced garlic, then add and mix well.
Stir-fry over medium heat until chicken and vegetables are fully cooked.
Transfer to a plate and serve.