Cut the chicken into bite-sized pieces.
Dice the potatoes, carrots, and onions into cubes.
Heat cooking oil in a pan and stir-fry the chicken.
Add the prepared vegetables and stir-fry together.
Add soy sauce, sugar, minced garlic, spicy green chili, pepper, and water. Bring to a boil.
Simmer over medium heat so the sauce absorbs into the ingredients.
Add glass noodles and cook on low heat until the sauce thickens.
Sprinkle with sesame seeds and chopped green onions to finish.